diff --git a/ROADMAP.md b/ROADMAP.md
index f21b043c8..ce3f9eccf 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -2,7 +2,7 @@
 
 **Stage: alpha** · next: beta, ~14 points and ~340–600 h away
 
-> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-14 · **Change:** minor (localization ~52% → ~55%: de, es, fr, ja, uk catalogs filled) · **Target:** Adobe Lightroom Classic 15.5 / Lightroom 9.6
+> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-14 · **Change:** minor (full-resolution zoom done; localization ~52% → ~55%: de, es, fr, ja, uk catalogs filled) · **Target:** Adobe Lightroom Classic 15.5 / Lightroom 9.6
 
 One-page summary of how close LightCraft is to Adobe Lightroom. Agents: read this, then pick work
 from [docs/gaps.md](docs/gaps.md). The full assessment, method and evidence are in
@@ -105,7 +105,7 @@ Ranked toward beta; detail in [docs/roadmap.md](docs/roadmap.md), gaps in [docs/
 1. Camera colour of our own: measured calibration for the popular models (50–90 h)
 2. CR3 for every Canon body (25–45 h)
 3. Render-fidelity suite against Lightroom, then tuning (30–60 h)
-4. Full-resolution zoom (8–15 h)
+4. ~~Full-resolution zoom~~ (done 2026-10-12)
 5. AI masks: Subject / Sky / People (40–70 h + model decision)
 6. Compressed ORF and HE NEF (28–55 h)
 7. Lens profile database of our own (40–80 h)
@@ -187,6 +187,7 @@ Ranked toward beta; detail in [docs/roadmap.md](docs/roadmap.md), gaps in [docs/
 | 2026-10-14 | minor | 17 uncompressed Olympus and Samsung models verified on one CC0 file each (254 models verified, 18%); headline numbers unchanged |
 | 2026-10-12 | minor | Mamiya MEF decoded and imported: ZD verified (241); headline numbers unchanged |
 | 2026-10-12 | minor | Epson ERF decoded: 3 more verified models (240); headline numbers unchanged |
+| 2026-10-14 | minor | Full-resolution zoom (gap 4) closed: soft proofing gets zoom windows; headline numbers unchanged |
 | 2026-10-12 | minor | UI/UX remaining 40–70 h → 34–58 h (accessibility audit landed); headline numbers unchanged |
 | 2026-10-12 | minor | 22 more CR3 bodies verified, EOS R6 Mark III white balance: RAW decoding 77% → 83%, RAW ~56% → ~60%; mainstream 49% → 51%, essentials 64% → 65%; full unchanged at ~61% |
 | 2026-10-12 | minor | 117 Nikon and Fujifilm bodies verified (354 models, 24%); headline numbers unchanged |
diff --git a/crates/engine/src/media.rs b/crates/engine/src/media.rs
index 50983c86c..803c856e8 100644
--- a/crates/engine/src/media.rs
+++ b/crates/engine/src/media.rs
@@ -2189,6 +2189,40 @@ mod tests {
         assert!(mean(&a) > mean(&b) + 10.0, "two stops brighter after: {} vs {}", mean(&a), mean(&b));
     }
 
+    // LR-VIEW-ZOOM: what the loupe shows at 1:1 is what an export at full size writes. A window of
+    // the zoomed frame (the photo's own pixels) is pixel-for-pixel the export, at the centre and
+    // at a corner, with tone, colour and detail edits on a camera-sized photo
+    #[test]
+    fn one_to_one_window_pixels_are_export_pixels() {
+        use lightcraft_pipeline::{OutputDepth, OutputSpace, PixelWindow};
+        let mut s = crate::Session::with_demo();
+        let id = s.active().unwrap();
+        let p = s.catalog.photo(id).unwrap().clone();
+        let (w, h) = (p.width as usize, p.height as usize);
+        assert!(w.max(h) > 2560, "larger than the preview cap: {w}×{h}");
+        let mut d = (*s.develop_of(id).unwrap()).clone();
+        d.light.exposure = 0.7;
+        d.light.contrast = 25.0;
+        d.color.saturation = 20.0;
+        s.set_develop(id, d, "Edits").unwrap();
+        let export = s.render_export(id, w, h, OutputSpace::Srgb, OutputDepth::U8).unwrap().image;
+        assert_eq!((export.width, export.height), (w, h), "a full-size export");
+        for win in [PixelWindow { x: w / 2 - 256, y: h / 2 - 256, w: 512, h: 384 }, PixelWindow { x: 0, y: h - 300, w: 400, h: 300 }] {
+            let tile = s.region_job(id, w, h, win, true).unwrap().run().rendered.unwrap().image;
+            assert_eq!((tile.width, tile.height), (win.w, win.h));
+            let mut worst = 0u8;
+            for y in 0..win.h {
+                for x in 0..win.w {
+                    let (a, b) = (tile.data[y * win.w + x], export.data[(win.y + y) * w + win.x + x]);
+                    for k in 0..3 {
+                        worst = worst.max(a[k].abs_diff(b[k]));
+                    }
+                }
+            }
+            assert!(worst <= 1, "window {win:?}: the 1:1 view differs from the export by up to {worst} levels");
+        }
+    }
+
     /// The thumbnail of a photo whose preview-level source is decoded is cut from it: the file (here
     /// one nothing can decode) is not read again.
     #[test]
diff --git a/crates/ui-egui/src/panels/detail.rs b/crates/ui-egui/src/panels/detail.rs
index 8c4ee5d02..4c69cc940 100644
--- a/crates/ui-egui/src/panels/detail.rs
+++ b/crates/ui-egui/src/panels/detail.rs
@@ -345,12 +345,16 @@ fn request_window(app: &mut LightcraftApp, c: &WindowCtx, v: &WindowView) -> Opt
     let job = if c.interacting { job.draft() } else { job };
     let overlay = if v.before { lightcraft_pipeline::Overlay::None } else { c.overlay };
     let job = if v.before { job } else { job.with_hidden_grading(app.ui.grading_hidden_for(c.id)) };
-    let job = job.with_overlay(overlay);
+    // the After window is proofed like the whole-frame render under it; the Before side is
+    // never proofed (its whole-frame render isn't either)
+    let proof = app.ui.soft_proof.then_some(app.ui.proof);
+    let job = job.with_overlay(overlay).with_proof(if v.before { None } else { proof });
     // keyed as the renderer keys the texture (a display profile changes the key)
     let job = app.renderer.job_for(v.slot, job);
-    // The overlay is part of the tile's identity too, so changing mask view/colour never leaves a
-    // stale region tile on screen while its replacement renders.
-    let look = job.settings.hash64() ^ overlay.key().rotate_left(17);
+    // The overlay and the proof are part of the tile's identity too, so changing mask view/colour
+    // or the proof never leaves a stale region tile on screen while its replacement renders.
+    let proof_key = if v.before { 0 } else { proof.map_or(0, |p| p.key()) };
+    let look = job.settings.hash64() ^ overlay.key().rotate_left(17) ^ proof_key.rotate_left(41);
     let view = crate::region::RegionView { photo: c.id, before: v.before, key: job.key, full: (fw, fh), window: win, settings: look };
     // windows of other photos, looks and zooms of this side can't be drawn any more
     app.region_tiles.retain(|(before, _), t| *before != v.before || t.is_current(c.id, (fw, fh), look, c.interacting));
@@ -472,15 +476,16 @@ pub fn show(app: &mut LightcraftApp, ui: &mut egui::Ui) {
     let drawn_long = target_rect.width().max(target_rect.height()) * ppp;
     // the whole frame at about canvas size; the zoomed part of it is a window render (below)
     let look = d.hash64();
-    // Diagnostic views that need whole-frame context, soft proofing, or reads too far for one
-    // window still render the whole frame at the size it is drawn. A mask overlay is window-safe.
+    // Diagnostic views that need whole-frame context, or reads too far for one window, still
+    // render the whole frame at the size it is drawn. Mask overlays and soft proofing (both act
+    // pixel by pixel) are window-safe.
     let sizes = crate::region::ViewSizes {
         drawn_long,
         canvas_long: canvas.width().max(canvas.height()) * ppp,
         native_long,
         texture_side,
         draft,
-        windows: !app.ui.soft_proof && overlay_supports_window(overlay),
+        windows: overlay_supports_window(overlay),
     };
     let mut plan = crate::region::plan(&app.ui.settings, sizes);
     if plan.window_edge.is_some_and(|edge| app.window_refused == Some((id, look, edge))) {
@@ -562,10 +567,9 @@ pub fn show(app: &mut LightcraftApp, ui: &mut egui::Ui) {
         app.renderer.request(Slot::Before, job, 90);
     }
     // zoomed past what the whole-frame render holds: also render the part on screen, at no more
-    // than 100 % (the GPU magnifies beyond that), for each side that is shown. Mask overlays use
-    // the same window; diagnostic overlays that need whole-frame context do not.
-    let windowable_view =
-        hover_key.is_none() && !app.ui.soft_proof && overlay_supports_window(overlay) && crate::region::same_aspect(display_aspect, aspect);
+    // than 100 % (the GPU magnifies beyond that), for each side that is shown. Mask overlays and
+    // soft proofing use the same window; diagnostic overlays that need whole-frame context do not.
+    let windowable_view = hover_key.is_none() && overlay_supports_window(overlay) && crate::region::same_aspect(display_aspect, aspect);
     let window_ctx = WindowCtx {
         id,
         overlay,
diff --git a/crates/ui-egui/src/region.rs b/crates/ui-egui/src/region.rs
index b242d30be..953008e0d 100644
--- a/crates/ui-egui/src/region.rs
+++ b/crates/ui-egui/src/region.rs
@@ -77,8 +77,8 @@ pub struct ViewSizes {
     /// `None`: no drag.
     pub draft: Option<f32>,
     /// Whether a window can be drawn over the whole-frame render (not with a diagnostic overlay
-    /// that needs whole-frame context, soft proofing, or a read too far for one window). Mask
-    /// overlays are window-safe.
+    /// that needs whole-frame context, or a read too far for one window). Mask
+    /// overlays and soft proofing are window-safe.
     pub windows: bool,
 }
 
@@ -225,7 +225,7 @@ pub fn plan(settings: &crate::state::AppSettings, v: ViewSizes) -> LoupePlan {
     let drawn_long = if v.drawn_long.is_finite() { v.drawn_long.max(8.0) } else { canvas_long };
     let scale = v.draft.map_or(1.0, |s| if s.is_finite() { s.clamp(0.1, 1.0) } else { 1.0 });
     if !v.windows {
-        // the whole frame at the size it is drawn (soft proof or a whole-frame diagnostic has no
+        // the whole frame at the size it is drawn (a whole-frame diagnostic has no
         // window); while a slider drags, a canvas-sized draft as with windows: a drag at 1:1 must
         // not render the photo's every pixel each frame
         let long = if v.draft.is_some() { drawn_long.min(canvas_long) } else { drawn_long };
@@ -422,7 +422,7 @@ mod tests {
         assert_eq!(drag.window_edge, still.window_edge);
     }
 
-    // Given no window (a whole-frame diagnostic or soft proofing), the view at rest renders the
+    // Given no window (a whole-frame diagnostic), the view at rest renders the
     // whole frame at the size it is drawn, but a slider drag drafts at the canvas size like the
     // windowed path
     #[test]
@@ -626,7 +626,7 @@ mod tests {
         }
     }
 
-    // Given a mode whose picture can't be a window (soft proofing, a whole-frame diagnostic, or a
+    // Given a mode whose picture can't be a window (a whole-frame diagnostic, or a
     // spot read too far for one render), the whole-frame render is as big as the view
     #[test]
     fn without_windows_the_whole_frame_is_rendered_at_the_drawn_size() {
diff --git a/crates/ui-egui/src/tests_preview_limit.rs b/crates/ui-egui/src/tests_preview_limit.rs
index dfddb9c4f..070921256 100644
--- a/crates/ui-egui/src/tests_preview_limit.rs
+++ b/crates/ui-egui/src/tests_preview_limit.rs
@@ -261,6 +261,29 @@ mod in_the_loupe {
         assert!(w >= 1300 && hh >= 700, "it covers the canvas: {w}×{hh}");
     }
 
+    // Given soft proofing on at 1:1 (LR-VIEW-ZOOM), the view is a canvas-sized frame plus a
+    // native window carrying the proof, as without it, instead of a whole-frame render at the
+    // photo's full size; switching the proof off swaps the window back to the plain look
+    #[test]
+    fn soft_proofing_at_one_to_one_is_a_window() {
+        let (mut h, native) = detail();
+        h.request("engine.execute", json!({"command": "view.zoom100"}), T);
+        h.settle(SETTLE);
+        let plain = h.app.region_view.expect("a window render without the proof");
+        let r = h.request("engine.execute", json!({"command": "view.softProof", "params": {"on": true, "destWarning": true}}), T);
+        assert_eq!(r["ok"], true, "{r}");
+        h.settle(SETTLE);
+        assert!(h.app.ui.soft_proof);
+        let main = rendered_long_edge(&h);
+        assert!(main <= 2560 && main < native, "native {native}: the whole-frame render is {main}");
+        let proofed = h.app.region_view.expect("a window render with the proof");
+        assert_eq!(proofed.full.0.max(proofed.full.1), native, "cut from the photo's own pixels");
+        assert_ne!(proofed.settings, plain.settings, "the proof is part of the window's look");
+        h.request("engine.execute", json!({"command": "view.softProof", "params": {"on": false}}), T);
+        h.settle(SETTLE);
+        assert_eq!(h.app.region_view.map(|r| r.settings), Some(plain.settings), "back to the plain window");
+    }
+
     // Given the user capped the preview at 1600 px, then 1:1 is rendered no larger than that
     #[test]
     fn an_explicit_limit_still_caps_one_to_one() {
@@ -646,10 +669,16 @@ mod in_the_loupe {
     #[test]
     #[ignore = "a measurement, not a check"]
     fn profile_slider_drag() {
-        for (size, percent) in
-            [([1400.0, 900.0], 0.0), ([1400.0, 900.0], 100.0), ([1400.0, 900.0], 400.0), ([2800.0, 1700.0], 100.0), ([2800.0, 1700.0], 400.0)]
-        {
+        for (size, percent, proof) in [
+            ([1400.0, 900.0], 0.0, false),
+            ([1400.0, 900.0], 100.0, false),
+            ([1400.0, 900.0], 400.0, false),
+            ([2800.0, 1700.0], 100.0, false),
+            ([2800.0, 1700.0], 400.0, false),
+            ([1400.0, 900.0], 100.0, true),
+        ] {
             let (mut h, native) = detail_in(size);
+            h.app.ui.soft_proof = proof;
             h.app.ui.zoom = if percent == 0.0 { crate::state::Zoom::Fit } else { crate::state::Zoom::Percent(percent) };
             h.settle(SETTLE);
             h.app.session.begin_interaction("Exposure").unwrap();
@@ -673,9 +702,10 @@ mod in_the_loupe {
             ms.sort_by(|a, b| a.total_cmp(b));
             let (w, hh) = region_tile(&h).unwrap_or((0, 0));
             eprintln!(
-                "PROFILE {}x{} canvas, {percent:>4}% (0 = fit) of {native} px: tick→shown median {:.1} ms, p90 {:.1} ms, max {:.1} ms; whole-frame render {} px, window tile {w}×{hh}",
+                "PROFILE {}x{} canvas, {percent:>4}% (0 = fit){} of {native} px: tick→shown median {:.1} ms, p90 {:.1} ms, max {:.1} ms; whole-frame render {} px, window tile {w}×{hh}",
                 size[0],
                 size[1],
+                if proof { ", soft proof" } else { "" },
                 ms[ms.len() / 2],
                 ms[ms.len() * 9 / 10],
                 ms[ms.len() - 1],
@@ -819,18 +849,6 @@ mod in_the_loupe {
         assert_eq!(h.app.region_tiles.len(), 2, "{:?}", h.app.region_tiles.keys().collect::<Vec<_>>());
     }
 
-    // Given soft proofing at 1:1 (a mode that draws one image, so no window), the whole-frame
-    // render is as big as the view, not a canvas-sized upscale
-    #[test]
-    fn soft_proofing_at_one_to_one_renders_the_whole_frame_at_full_size() {
-        let (mut h, native) = detail();
-        h.app.ui.soft_proof = true;
-        h.request("engine.execute", json!({"command": "view.zoom100"}), T);
-        h.settle(SETTLE);
-        assert_eq!(h.app.region_view, None);
-        assert_eq!(rendered_long_edge(&h), native);
-    }
-
     // Given a window the photo's spots make too big for one render (refused), the loupe falls back
     // to the whole frame at the drawn size, and tries windows again when the look changes
     #[test]
diff --git a/docs/gaps.md b/docs/gaps.md
index 68c2595e2..07ae9078b 100644
--- a/docs/gaps.md
+++ b/docs/gaps.md
@@ -1,6 +1,6 @@
 # Gaps: where LightCraft falls short of Lightroom
 
-> **Last reviewed:** 2026-10-11 · **Last updated:** 2026-10-14 · **Change:** minor (catalog import result, offline Local promotion and reduced copies; gap 8: Nikon Z 6II / Z 8 / Z f in-file distortion; gaps 10, 22 and 23 listed once again: merges had left two copies of each, and `cargo xtask parity` now fails on a gap listed twice)
+> **Last reviewed:** 2026-10-11 · **Last updated:** 2026-10-14 · **Change:** minor (gap 4 closed: soft proofing gets zoom windows; catalog import result, offline Local promotion and reduced copies; gap 8: Nikon Z 6II / Z 8 / Z f in-file distortion; gaps 10, 22 and 23 listed once again: merges had left two copies of each, and `cargo xtask parity` now fails on a gap listed twice)
 
 Every known shortfall, one entry each, ranked by user impact (how many Lightroom users hit it, and
 how hard it blocks them), then by effort. **Agents pick work from the top** (the first entry nobody is
@@ -18,7 +18,7 @@ Hours are Opus 5.5 agent wall-clock hours (see [target-app-parity.md](target-app
 | 1 B | **Camera colour is estimated, not measured** (LR-PROF-CAMERACOLOR). Raws start from a per-file fit to the camera JPEG, 5 bundled profiles or 52 spectral matrices; others use a neutral matrix (a black-and-white camera JPEG gives its tone curve only, #577; dark JPEG tones also guide the toe, #1307) | ΔE vs camera JPEG 2.9–10 after fitting (raw-parity.md); 0 chart-calibrated models vs 1,500 Adobe Standard profiles | every raw shooter sees colour that is close but not Lightroom's; some get neutral-matrix colour | 50–90 | [raw-parity](raw-parity.md#colour) |
 | 2 B | **CR3 beyond four verified bodies** (LR-IMP-FORMATS): `crx.rs` refuses vertical-tile C-RAW, partial-subband and other plane coding, multi-tile 0x200 and adaptive low-frequency gains, and those files fall back to the preview; CR3 sRAW / mRAW and HEIF CR3 too. Verified: M50 / R100 / R8 / R5 Mark II. EOS R7 C-RAW (odd-height QP map) decodes since a45c2b66 and R6 Mark II C-RAW is reported working on 0.6.0, but neither is verified yet (no corpus test or recorded check) | measured: Canon is the largest bucket (33% of photographers) and its share whose camera fully works is the lowest of the big four, 73%; 18 of 22 popular Canon bodies write CR3, 4 verified (raw-parity.md); R7 rule checked only on paired RAW / C-RAW captures ([cr3.md](cr3.md)) | +6.2 points of photographers whose camera works, the biggest single raw gain | 25–45 | [raw-parity](raw-parity.md#remaining-work-ranked-by-photographers-unlocked-per-hour) |
 | 3 B | **Render fidelity unmeasured** (LR-BEHAV-RENDER-FIDELITY): tone, highlights, texture / clarity / dehaze, NR and sharpening are tuned by eye | no side-by-side suite; a retune needs a new process version (only V1 exists) | edits imported from Lightroom look different; the look "isn't Lightroom's" | 30–60 | [raw-parity](raw-parity.md), [process-versions](process-versions.md) |
-| 4 B | **Original-pixel detail at 100%** (LR-VIEW-ZOOM, P0): Detail, Before/After, Compare and Reference are sharp at 1:1–8:1 (zoom windows, #323). Mask overlays and soft proofing still render the whole frame at the drawn size instead of a window: sharp up to the GPU texture side, but a full-size render per edit at 1:1 | checklist row 🟡 | editing with a mask overlay or soft proof on at 1:1 is slow on large files, and blurry past the texture side | 4–8 | [ui-parity](ui-parity.md) |
+| 4 | ~~Original-pixel detail at 100%~~ (LR-VIEW-ZOOM): closed 2026-10-12, see Closed recently | checklist row ✅ | — | 0 | [ui-parity](ui-parity.md) |
 | 5 B | **AI masks: Subject, Sky, People, Background, Landscape** are heuristics; Object / Describe run SAM 3 but its download has no mirror configured | `crates/segment`; ai-masks.md; MASK rows 67% | masking is how most Lightroom users edit today | 40–70 + model decision | [target-app-parity](target-app-parity.md#ai) |
 | 6 B | **Compressed ORF** (every Olympus / OM body since ~2008) | measured: 66 of 78 Olympus / OM models preview-only; `orf.rs` refuses; OM bucket 3% of photographers, 3% of them fully work | +2.6 points; best gain per hour of any raw gap (~0.2) | 8–15 | [raw-parity](raw-parity.md#compressed-orf-a-clean-room-starting-point) (the two Olympus patents that describe the method) |
 | 7 | **Nikon High Efficiency NEF** (HE / HE★ on Z 8, Z 9, Z 6III, Z f, Z50II, Z5II when set to HE) | named and preview only (#193); needs a pure-Rust JPEG XS decoder | +1.1 points (only shots taken in HE; lossless works on the same bodies); low gain per hour (~0.04), so not a beta blocker | 20–40 | [raw-parity](raw-parity.md) |
@@ -60,6 +60,8 @@ Beta-blocking gaps (B) total **~230–430 h**; with the stability and platform w
 
 ## Closed recently (kept for calibration)
 
+- 2026-10-12: original-pixel detail at 100% (gap 4, LR-VIEW-ZOOM, #323): soft proofing gets zoom windows like
+  Detail, Before/After, Compare, Reference and mask overlays; 1:1 tested equal to the full-size export.
 - 2026-10-11: Sony ILCA-99M2 profile.
 - 2026-10-11: Nikon edge bars on bodies without CropArea (#976, #914): 36 model / size / depth groups measured.
 - 2026-10-10: Nikon lossy-after-split NEF (#633), ORF 12.8 bpp (#651), HDR gain map / PQ AVIF / float
@@ -78,6 +80,7 @@ Beta-blocking gaps (B) total **~230–430 h**; with the stability and platform w
 | 2026-10-14 | minor | Gap 21: de, es, fr, ja and uk catalogs filled (97–99%); 55–90 h → 40–70 h |
 | 2026-10-14 | minor | Gap 10: 17 uncompressed Olympus and Samsung models verified on one CC0 file each (254 models) |
 | 2026-10-14 | minor | Gap 29 added: the HDR merge, tested on real 67 MP brackets, keeps moving clipped highlights and merges in batches now; AI Denoise on merged DNGs, JPEG response curves and per-frame memory remain |
+| 2026-10-14 | minor | Gap 4 closed: soft proofing at 1:1 renders a window (mask overlays already did); 1:1 pixels tested equal to export; only diagnostic overlays (Visualize Spots, Point Color range, HDR range) stay whole-frame |
 | 2026-10-13 | patch | Gaps 10, 22 and 23 each had two rows (two branches edited them; the merges kept both): the older copies are removed, and `cargo xtask parity` (in `ci`) now fails when a gap number is listed twice |
 | 2026-10-13 | minor | Closed recently: Sony ILCA-99M2 profile |
 | 2026-10-14 | minor | Gap 10: 21 Sony and Leica models verified on one CC0 file each (258 models) |
diff --git a/docs/parity-checklist.md b/docs/parity-checklist.md
index ee05a4f55..3df81626b 100644
--- a/docs/parity-checklist.md
+++ b/docs/parity-checklist.md
@@ -1,6 +1,6 @@
 # Lightroom parity checklist
 
-> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-14 · **Change:** minor (catalog import: persistent result, offline Local promotion and library-switch dismissal; integration batch 35: KEYC-SELECTONLYACTIVE, Select Only Active Photo ⌘⇧D; LR-BEHAV-AUTOSAVE, damaged snapshots repaired on open; LR-EDIT-OPTICS-PROFILE, Nikon Z 6II / Z 8 / Z f in-file distortion; LRC-LIB-CATALOG-IMPORT, WAL-only catalogs open; LR-EXP-DIM, enlargements stop at 512 MP; LR-IMP-CAMERA-COVERAGE, Canon EOS RP CR3 verified; model folder retry) · **Target:** Adobe Lightroom Classic 15.5 / Lightroom 9.6
+> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-14 · **Change:** minor (LR-VIEW-ZOOM ✅: mask overlays and soft proofing get zoom windows; 1:1 equals export; catalog import: persistent result, offline Local promotion and library-switch dismissal; integration batch 35: KEYC-SELECTONLYACTIVE, Select Only Active Photo ⌘⇧D; LR-BEHAV-AUTOSAVE, damaged snapshots repaired on open; LR-EDIT-OPTICS-PROFILE, Nikon Z 6II / Z 8 / Z f in-file distortion; LRC-LIB-CATALOG-IMPORT, WAL-only catalogs open; LR-EXP-DIM, enlargements stop at 512 MP; LR-IMP-CAMERA-COVERAGE, Canon EOS RP CR3 verified; model folder retry) · **Target:** Adobe Lightroom Classic 15.5 / Lightroom 9.6
 > **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-14 · **Change:** minor (integration batch 35: KEYC-SELECTONLYACTIVE, Select Only Active Photo ⌘⇧D; LR-BEHAV-AUTOSAVE, damaged snapshots repaired on open; LR-EDIT-OPTICS-PROFILE, Nikon Z 6II / Z 8 / Z f in-file distortion; LRC-LIB-CATALOG-IMPORT, WAL-only catalogs open; LR-EXP-DIM, enlargements stop at 512 MP; LR-IMP-CAMERA-COVERAGE, Canon EOS RP CR3 verified; model folder retry; LR-IMP-FORMATS: preview-only raws rechecked after an update, #662) · **Target:** Adobe Lightroom Classic 15.5 / Lightroom 9.6
 > **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-12 · **Change:** minor (LR-VIEW-ZOOM: full-size slider-drag drafts on the GPU, timed with their frame, issue #330; rapid slider entry; LR-PROF-CAMERACOLOR: tone curve from black-and-white camera JPEGs; LR-VIEW-ZOOM, LR-VIEW-COMPARE: Compare and Reference zoom windows; LR-IMP-FORMATS, LR-IMP-CAMERA-COVERAGE: EOS R5 Mark II CR3 decodes; renamed from `parity.md`; Top gaps moved to gaps.md, shortcut notes to ui-parity.md; filesystem history retry/Undo/Redo evidence; renamed from `parity.md`; Top gaps moved to gaps.md, shortcut notes to ui-parity.md) · **Target:** Adobe Lightroom Classic 15.5 / Lightroom 9.6
 
@@ -30,7 +30,7 @@ cited here still exists. Formerly docs/parity.md.
 |---|---:|---:|---:|---:|---:|---:|
 | A. Import (IMP) | 12 | 3 | 1 | 1 | 4/6 (67%) | 5/5 (100%) |
 | B. Library management (LIB) | 22 | 2 | 1 | 2 | 9/9 (100%) | 9/9 (100%) |
-| C. Views & navigation (VIEW) | 15 | 1 | 1 | 0 | 8/9 (89%) | 4/4 (100%) |
+| C. Views & navigation (VIEW) | 16 | 0 | 1 | 0 | 9/9 (100%) | 4/4 (100%) |
 | D. Search & filter (FILT) | 11 | 1 | 1 | 0 | 4/4 (100%) | 4/4 (100%) |
 | E. Metadata (META) | 5 | 1 | 0 | 0 | 2/2 (100%) | 2/2 (100%) |
 | F. Edit panel — global adjustments (EDIT) | 44 | 2 | 3 | 1 | 28/28 (100%) | 13/14 (93%) |
@@ -38,7 +38,7 @@ cited here still exists. Formerly docs/parity.md.
 | H. Crop & rotate (CROP) | 9 | 0 | 0 | 1 | 6/6 (100%) | 3/3 (100%) |
 | I. Remove / healing (REM) | 8 | 1 | 2 | 2 | 4/4 (100%) | 2/3 (67%) |
 | J. Red eye (EYE) | 2 | 0 | 0 | 0 | — | 1/1 (100%) |
-| K. Masking (MASK) | 14 | 5 | 5 | 0 | 7/8 (88%) | 6/6 (100%) |
+| K. Masking (MASK) | 15 | 5 | 5 | 0 | 7/8 (88%) | 7/7 (100%) |
 | L. Presets (PRE) | 6 | 0 | 1 | 1 | 2/2 (100%) | 2/2 (100%) |
 | M. Versions & history (VER) | 5 | 0 | 0 | 0 | 1/1 (100%) | 3/3 (100%) |
 | N. Copy / paste / sync (SYNC) | 5 | 0 | 0 | 0 | 3/3 (100%) | 1/1 (100%) |
@@ -51,13 +51,13 @@ cited here still exists. Formerly docs/parity.md.
 | U. Map & location (MAP) | 0 | 1 | 1 | 0 | — | 0/1 (0%) |
 | V. Preferences (PREF) | 6 | 2 | 2 | 2 | 1/1 (100%) | 4/5 (80%) |
 | W. Cloud & AI infrastructure (CLOUD / AI) | 1 | 0 | 1 | 2 | — | — |
-| X. Cross-cutting behaviours (BEHAV) | 23 | 7 | 1 | 1 | 8/8 (100%) | 7/10 (70%) |
+| X. Cross-cutting behaviours (BEHAV) | 23 | 6 | 1 | 1 | 8/8 (100%) | 7/10 (70%) |
 | Y. Menus | 84 | 0 | 4 | 8 | 47/47 (100%) | 23/23 (100%) |
-| Z. Keyboard shortcuts (desktop) | 76 | 4 | 3 | 1 | 49/52 (94%) | 23/25 (92%) |
-| Lightroom Classic extras | 36 | 22 | 27 | 8 | — | 24/26 (92%) |
-| **Total** | 411 | 59 | 64 | 35 | 193/201 (96%) | 146/159 (92%) |
+| Z. Keyboard shortcuts (desktop) | 77 | 4 | 2 | 1 | 49/52 (94%) | 23/25 (92%) |
+| Lightroom Classic extras | 36 | 23 | 27 | 8 | — | 24/26 (92%) |
+| **Total** | 414 | 60 | 63 | 35 | 194/201 (97%) | 147/160 (92%) |
 
-Weighted completion (✅ = 1, 🟡 = ½, 🚫 left out): **82.5%** of 534 in-scope rows — P0 98.0% of 201 · P1 95.0% of 159 · P2 52.9% of 173.
+Weighted completion (✅ = 1, 🟡 = ½, 🚫 left out): **82.7%** of 537 in-scope rows — P0 98.3% of 201 · P1 95.0% of 160 · P2 53.4% of 175.
 <!-- /parity:summary -->
 
 ## Top gaps and shortcut notes
@@ -133,7 +133,7 @@ differences and missing bindings are in [ui-parity.md](ui-parity.md#shortcuts).
 | LR-VIEW-EDIT | Edit view | P0 | ✅ | `cmd:panel.edit` | |
 | LR-VIEW-FULLSCREEN | Full-screen preview | P1 | ✅ | `cmd:view.fullScreenPreview`, `cmd:view.enterFullScreen` | photo on black, arrows step, Esc exits; ⇧⌘F window full screen |
 | LR-VIEW-FILMSTRIP | Filmstrip | P0 | ✅ | `cmd:view.filmstrip`, `crates/ui-egui/src/panels/detail.rs` | the photo context menu on right-click; the mouse wheel scrolls it sideways; it follows the active photo only when that changes (centred if off screen), so a scrolled strip stays put; every selected photo is highlighted, the active one framed in white, as in the grid |
-| LR-VIEW-ZOOM | Zoom & pan | P0 | 🟡 | `cmd:view.zoomFit`, `cmd:view.zoom100`, `cmd:view.zoomIn`, `cmd:view.zoomOut`, `cmd:view.zoomToggle`, `cmd:view.clickZoom`, `cmd:view.navigate`, `crates/ui-egui/src/panels/detail.rs`, `crates/ui-egui/src/headless.rs` | continuous native pinch / modifier-wheel zoom (Fit–800%, anchored under the pointer), two-finger scroll / touch pan with edge limits; Detail (including tools, Before/After and full-screen preview), Compare and Reference; fractional percentages preserve small gestures; image, picker and targeted-adjustment cursors stay steady between gesture events; keyboard steps 25–800 % (not 6–1600 %); Fill in the bottom bar; click / Z / Space eases to the chosen ratio (1:1 default, 2:1, 3:1, 4:1, 8:1). The loupe's cost follows the canvas, not the zoom (issue #323): the whole frame is rendered at about canvas size (at most the 2560 px preview source level unless a larger Preview size is chosen, and never above the GPU's texture side), and once the view is zoomed well past that (more than 25 %) the window on screen is rendered too, cut from a frame of at most the photo's own pixels, so beyond 100 % the GPU magnifies it (`region::plan`, `RenderRequest::window`, `Session::region_job`, `crates/ui-egui/src/region.rs`); 1:1 and 2:1–8:1 are sharp at any photo size. A slider tick takes 7–12 ms on a 1400 × 900 canvas and 11–25 ms on a 2800 × 1700 one at 100 % and 400 % of a 24 MP photo (M1 Max, GPU, `profile_slider_drag`); about 20–25 ms at 100 % on the big canvas is over a 16 ms frame. A slider drag renders the whole frame at full size where the GPU draws the view, so the fit view stays sharp while dragging, and at 0.6 of it where that would be too slow: on the CPU, with soft proofing or the HDR range shown, or for a control whose full-size drafts on this photo went over the 16 ms slider budget in an earlier drag (a LUT profile or refined mask the CPU renders, a photo past a GPU limit, a slow GPU); a draft's time is its render plus the frame that uploads and shows it. The size is chosen when a drag starts and kept until it ends, unless its full-size drafts take more than twice the budget, when it drops to 0.6 after three of them (`region::DragScale`, issue #330). Zoomed in, the whole-frame draft under the window is the 0.6 one (only the histogram and the window's stand-in use it). Render workers convert the pixels for their textures, not the UI thread. Handing GPU renders to egui without a CPU readback is #1228. A continuous pinch holds the render sizes (and the windows there are) until it is quiet. A fit view on a canvas up to about 3200 px (a Retina Mac) never decodes the original; larger displays get a window at fit, which does. Modes that draw another picture over the loupe (mask overlays, soft proofing) and photos whose spots or Auto Mask strokes read too far for one window (only photos longer than 8192 px) render the whole frame at the size it is drawn, as before windows; while a preset or profile is hovered, or over a picture that is not the frame (an unsupported raw's embedded JPEG), the whole frame stays canvas-sized. Before/After (side by side, stacked, `\\` and both wipes) gets the same windows on both sides, clipped to their pane or side of the line. Windows render on the GPU like whole frames (equivalence-tested against the CPU), in the browser build too (windows no wider than its GPU's texture side, at most 3072 px), and are not made while hovering a look, soft-proofing or showing an overlay, nor over a picture that is not the frame (an unsupported raw's embedded JPEG with another crop). No texture is larger than the GPU allows. Spots and Auto Mask brushes work while what a window reads fits one render (8192 px along an axis, 4096 in the browser): the window grows to hold the spot and its source patch, or the dabs near it, and if that would take more (a clone from far away at 8:1) the loupe keeps the whole-frame render instead, and spots with an automatic source pick it from a fixed-size render of the whole frame (so a window's choice can differ from a whole-frame render's, which picks at its own resolution). The wide stages (dehaze, clarity, highlights/shadows base) and Refine Edges on masks read a window margin capped at 768 px; measured on hard-edged blocks that costs at most a few levels at 8:1. the histogram and Navigator come from the whole-frame render. Compare and Reference get the same windows, one per pane (`Slot::CompareRegion`, `panels/compare.rs`), over each pane's whole-frame render (at most 2560 px); while either view is open two originals stay decoded (`MediaCache::set_full_capacity`), so one pane's window does not evict the other's source; a pinch, or a slider drag on the active photo in Reference, keeps the windows there are until it ends. Still 🟡: mask overlays and soft proofing have no window (a full-size whole-frame render at 1:1) |
+| LR-VIEW-ZOOM | Zoom & pan | P0 | ✅ | `cmd:view.zoomFit`, `cmd:view.zoom100`, `cmd:view.zoomIn`, `cmd:view.zoomOut`, `cmd:view.zoomToggle`, `cmd:view.clickZoom`, `cmd:view.navigate`, `crates/ui-egui/src/panels/detail.rs`, `crates/ui-egui/src/headless.rs` | continuous native pinch / modifier-wheel zoom (Fit–800%, anchored under the pointer), two-finger scroll / touch pan with edge limits; Detail (including tools, Before/After and full-screen preview), Compare and Reference; fractional percentages preserve small gestures; image, picker and targeted-adjustment cursors stay steady between gesture events; keyboard steps 25–800 % (not 6–1600 %); Fill in the bottom bar; click / Z / Space eases to the chosen ratio (1:1 default, 2:1, 3:1, 4:1, 8:1). The loupe's cost follows the canvas, not the zoom (issue #323): the whole frame is rendered at about canvas size (at most the 2560 px preview source level unless a larger Preview size is chosen, and never above the GPU's texture side), and once the view is zoomed well past that (more than 25 %) the window on screen is rendered too, cut from a frame of at most the photo's own pixels, so beyond 100 % the GPU magnifies it (`region::plan`, `RenderRequest::window`, `Session::region_job`, `crates/ui-egui/src/region.rs`); 1:1 and 2:1–8:1 are sharp at any photo size. A slider tick takes 7–12 ms on a 1400 × 900 canvas and 11–25 ms on a 2800 × 1700 one at 100 % and 400 % of a 24 MP photo (M1 Max, GPU, `profile_slider_drag`); about 20–25 ms at 100 % on the big canvas is over a 16 ms frame. A slider drag renders the whole frame at full size where the GPU draws the view, so the fit view stays sharp while dragging, and at 0.6 of it where that would be too slow: on the CPU, with soft proofing or the HDR range shown, or for a control whose full-size drafts on this photo went over the 16 ms slider budget in an earlier drag (a LUT profile or refined mask the CPU renders, a photo past a GPU limit, a slow GPU); a draft's time is its render plus the frame that uploads and shows it. The size is chosen when a drag starts and kept until it ends, unless its full-size drafts take more than twice the budget, when it drops to 0.6 after three of them (`region::DragScale`, issue #330). Zoomed in, the whole-frame draft under the window is the 0.6 one (only the histogram and the window's stand-in use it). Render workers convert the pixels for their textures, not the UI thread. Handing GPU renders to egui without a CPU readback is #1228. A continuous pinch holds the render sizes (and the windows there are) until it is quiet. A fit view on a canvas up to about 3200 px (a Retina Mac) never decodes the original; larger displays get a window at fit, which does. Diagnostic overlays that need whole-frame context (Visualize Spots, Point Color range, HDR range) and photos whose spots or Auto Mask strokes read too far for one window (only photos longer than 8192 px) render the whole frame at the size it is drawn, as before windows; while a preset or profile is hovered, or over a picture that is not the frame (an unsupported raw's embedded JPEG), the whole frame stays canvas-sized. Before/After (side by side, stacked, `\\` and both wipes) gets the same windows on both sides, clipped to their pane or side of the line. Windows render on the GPU like whole frames (equivalence-tested against the CPU), in the browser build too (windows no wider than its GPU's texture side, at most 3072 px), and are not made while hovering a look or showing a diagnostic overlay, nor over a picture that is not the frame (an unsupported raw's embedded JPEG with another crop). No texture is larger than the GPU allows. Spots and Auto Mask brushes work while what a window reads fits one render (8192 px along an axis, 4096 in the browser): the window grows to hold the spot and its source patch, or the dabs near it, and if that would take more (a clone from far away at 8:1) the loupe keeps the whole-frame render instead, and spots with an automatic source pick it from a fixed-size render of the whole frame (so a window's choice can differ from a whole-frame render's, which picks at its own resolution). The wide stages (dehaze, clarity, highlights/shadows base) and Refine Edges on masks read a window margin capped at 768 px; measured on hard-edged blocks that costs at most a few levels at 8:1. the histogram and Navigator come from the whole-frame render. Compare and Reference get the same windows, one per pane (`Slot::CompareRegion`, `panels/compare.rs`), over each pane's whole-frame render (at most 2560 px); while either view is open two originals stay decoded (`MediaCache::set_full_capacity`), so one pane's window does not evict the other's source; a pinch, or a slider drag on the active photo in Reference, keeps the windows there are until it ends. Mask overlays and soft proofing get the same windows (the window carries the overlay or the proof; the proof renders on the CPU, so a tick at 100 % on a 1400 × 900 canvas takes about 36 ms instead of a full-size 24 MP proof). Verified: a 1:1 window of a 24 MP photo with tone and colour edits is the full-size export to within one level (`one_to_one_window_pixels_are_export_pixels`). Measured on Linux (Ryzen AI Max+ 395, Radeon 8060S, GPU, `profile_slider_drag`): median tick→shown 7 ms at fit, 33 ms at 100 % and 6 ms at 400 % on 1400 × 900; 21 ms at 100 % and 9 ms at 400 % on 2800 × 1700; 36 ms at 100 % with soft proof. Not windowed: the diagnostic overlays named above |
 | LR-VIEW-NAVIGATOR | Navigator mini map | P1 | ✅ | `cmd:view.navigator`, `crates/ui-egui/src/panels/detail.rs` | shown while zoomed (bottom right); click/drag pans |
 | LR-VIEW-BEFOREAFTER | Before / after | P0 | ✅ | `cmd:view.showOriginal`, `cmd:view.beforeAfter`, `cmd:view.beforeAfterSplit`, `cmd:view.beforeAfterTopBottom`, `cmd:view.beforeAfterSplitTopBottom`, `cmd:beforeAfter.setBefore`, `cmd:beforeAfter.copyAfterToBefore`, `cmd:beforeAfter.copyBeforeToAfter`, `cmd:beforeAfter.swap`, `cmd:beforeAfter.resetBefore` | all four layouts; before = the import state (defaults + import preset) or a chosen history step / version / the current settings; copy and swap (View → Before/After Settings, History row menu). The chosen before lasts for the session; in side by side and top / bottom, clicks with the white-balance selector, colour samplers and targeted adjustment work in the Before view too (`crates/ui-egui/src/tests_before_after.rs`). Zoomed in, the side by side and stacked views each stay in their pane, with their labels under it. Click zoom animates both panes together, including cached window tiles; input follows the displayed image and render requests use the final size (#1821) |
 | LR-VIEW-COMPARE | Compare two photos | P1 | ✅ | `cmd:view.compare`, `cmd:compare.swap`, `cmd:compare.makeSelect`, `cmd:compare.set`, `crates/ui-egui/src/panels/compare.rs`, `crates/ui-egui/src/tests_compare.rs` | select / candidate, synced zoom + pan, arrows move the candidate; a filmstrip click puts the photo into the active side (a photo on the other side swaps), so the active photo is always one of the two shown; a ⌘/Ctrl- or Shift-click on the filmstrip changes the selection as in the grid while the two photos shown stay selected and the active photo is unchanged (#187); 1:1 to 8:1 sharp on both sides (zoom windows, see LR-VIEW-ZOOM); no zoom-link toggle; each pane says “Rendering…” (widget `compare:rendering:<pane>`) or “This photo can't be opened” (`compare:renderFailed:<pane>`) as the loupe does |
@@ -804,6 +804,7 @@ Latin stays upright. Advanced Japanese composition remains open. Regression cove
 | 2026-10-14 | patch | LR-META-XMP: automatic sidecar writes that fail (folder offline or read-only) wait and are written again once the files are reachable, with a notice (`cmd:library.retrySidecars`); status unchanged |
 | 2026-10-13 | minor | LR-BEHAV-WINDOW (new, 🟡): the desktop app's window opens at the size it was left at, zoomed / maximized if it was; full screen and the place on the desktop are not remembered |
 | 2026-10-14 | minor | LR-IMP-CAMERA-COVERAGE: Nikon D600, D610 and D5000 NEFs drop the filler and noise columns on the right (a band), and the D600 and D610 measure their white level inside the image (#1627); status unchanged (🟡) |
+| 2026-10-14 | minor | LR-VIEW-ZOOM 🟡 → ✅: soft proofing gets zoom windows (mask overlays already had them; row text corrected), 1:1 pixels tested equal to the full-size export, slider-drag latency at 1:1 measured on Linux |
 | 2026-10-13 | patch | LR-VIEW-COMPARE, LRC-LIB-COMPARE: ⌘/Ctrl- and Shift-clicks on the filmstrip in Compare change the selection as in the grid; the two photos shown stay selected and the active photo is unchanged (#187); statuses unchanged |
 | 2026-10-13 | minor | KEYC-SELECTONLYACTIVE: Edit → Select Only Active Photo (⌘⇧D) lands as a new row; status 🟡 (headless-tested, native macOS menu path unverified) |
 | 2026-10-13 | patch | LRC-LIB-CATALOG-IMPORT: a catalog whose tables are all still in its `-wal` file (main file schema format 0) opens instead of failing as an unsupported schema format; status unchanged |
diff --git a/docs/target-app-parity.md b/docs/target-app-parity.md
index 9f56bde58..448f1dc38 100644
--- a/docs/target-app-parity.md
+++ b/docs/target-app-parity.md
@@ -1,6 +1,6 @@
 # Target-app parity: LightCraft vs Adobe Lightroom
 
-> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-14 · **Change:** minor (localization ~52% → ~55%: de, es, fr, ja, uk catalogs filled) · **Target:** Adobe Lightroom Classic 15.5 (August 2026) and Lightroom 9.6 (desktop)
+> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-14 · **Change:** minor (gap 4 closed: full-resolution zoom; localization ~52% → ~55%: de, es, fr, ja, uk catalogs filled) · **Target:** Adobe Lightroom Classic 15.5 (August 2026) and Lightroom 9.6 (desktop)
 
 The authoritative assessment of how close LightCraft is to Lightroom. The row-by-row checklist is
 [parity-checklist.md](parity-checklist.md); the ranked work list is [gaps.md](gaps.md); deep areas
@@ -157,7 +157,7 @@ essentials replaces its guessed 45% raw look with 84% × 0.75 (+1 point).
 
 | Discount | Mainstream | Essentials | Evidence |
 |---|---:|---:|---|
-| Interaction fidelity / UI clarity | ×0.95 | ×0.95 | brush live preview gaps and feathering (#517, #518); crop artefacts and limits (#731, #742, #770, #771); Compare white-balance selector (#743–#745); low-res slider previews (#330); dialogs taller than the window (#781); mouse-wheel scroll (#714); 100% zoom capped (gap 4) |
+| Interaction fidelity / UI clarity | ×0.95 | ×0.95 | brush live preview gaps and feathering (#517, #518); crop artefacts and limits (#731, #742, #770, #771); Compare white-balance selector (#743–#745); low-res slider previews (#330); dialogs taller than the window (#781); mouse-wheel scroll (#714) |
 | Stability on real machines | ×0.92 | ×0.92 | launch and quit crashes or silent startup failures (#250 macOS 12 Intel, #315 Windows Intel GPU, #431 Intel Mac, #260, #462, #783 Linux / Nouveau, #790 Windows installer); tests run in CI on FreeBSD only (gap 9) |
 | File exchange with Lightroom users (mainstream) / opening files people send (essentials) | ×0.92 | ×0.95 | Adobe XMP sidecars change colours (#290), XMP CameraProfile and Upright ignored (#204, #205), catalog import fails (#599), same Light values render differently (#523, #209), no write-back to `.lrcat`; for casual users: CR3 beyond verified bodies, compressed ORF, HE NEF open as previews (#473, #485, #556), HEIC trouble (#693) |
 | **Product** | **×0.804** | **×0.830** | |
@@ -235,13 +235,13 @@ open as previews, and colour on every non-DNG raw is estimated rather than measu
 
 **Alpha gate:** all six core workflows (import, cull, develop, save and reopen, batch looks, export)
 work end to end on macOS; see the table in [roadmap.md](roadmap.md#alpha-gate). The partial rows (CR3
-variants, compressed ORF, HE NEF as previews; capped 100% zoom) degrade but don't block a workflow.
+variants, compressed ORF, HE NEF as previews) degrade but don't block a workflow.
 
-**To beta:** ~14 points of readiness, **~340–600 h**: the nine `B` gaps in [gaps.md](gaps.md)
+**To beta:** ~14 points of readiness, **~340–600 h**: the `B` gaps in [gaps.md](gaps.md)
 (~230–430 h), plus burning down the ~92 open core-path user issues (40–80 h) and stability work
 around them. Beta needs: CR3, ORF and
 HE NEF decoding from sensor data; measured colour for the popular models and a fidelity suite with
-scores; full-resolution zoom; Subject / Sky / People masks; a lens profile database for the
+scores; Subject / Sky / People masks; a lens profile database for the
 popular lenses; tests in CI on macOS, Windows and Linux.
 
 ## How hours are calibrated
@@ -303,6 +303,7 @@ P2 items 12–25 h; look tuning, performance, packaging, hardening 25–45 h.
 | 2026-10-14 | minor | Localization ~52% → ~55% (mean of the 12 key languages): de, es, fr, ja and uk catalogs filled |
 | 2026-10-12 | minor | UI/UX remaining 34–58 h → 32–54 h (canvas tools by keyboard); headline numbers unchanged |
 | 2026-10-14 | minor | Merge and HDR: merge 100% → 88% (LR-MERGE-HDR ✅ → 🟡 after testing on real 67 MP brackets; gap 29); area percentages unchanged |
+| 2026-10-14 | minor | Gap 4 (full-resolution zoom) closed: removed from the interaction-fidelity notes, the alpha-gate partial rows and the beta needs; headline numbers and the ×0.95 interaction factor unchanged |
 | 2026-10-12 | minor | UI/UX remaining 40–70 h → 34–58 h (accessibility audit landed, ui-parity.md); percentages unchanged |
 | 2026-10-12 | minor | 22 more CR3 bodies verified on one CC0 file each (raw-parity.md): use-weighted share whose camera decodes 85% → 92%, RAW decoding 77% → 83%; full 60.7% → 61.2% (~61%), mainstream depth 72.1% → 74.0% (~49% → ~51%), essentials depth 77.5% → 78.0% (~64% → ~65%) |
 | 2026-10-12 | minor | 117 Nikon and Fujifilm bodies verified (raw-parity.md): use-weighted share whose camera decodes 85% → 86%, RAW decoding 77% (unchanged); mainstream depth 72.1% → 72.4%, essentials depth 77.5% → 77.6%; headline numbers unchanged |
diff --git a/docs/ui-parity.md b/docs/ui-parity.md
index 17a8b6daa..9cc21f234 100644
--- a/docs/ui-parity.md
+++ b/docs/ui-parity.md
@@ -1,6 +1,6 @@
 # UI parity
 
-> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-12 · **Change:** minor (canvas tools by keyboard; focus-order test; ~50 unnamed hand-drawn widgets named) · **Target:** Adobe Lightroom Classic 15.5 / Lightroom 9.6
+> **Last reviewed:** 2026-10-10 · **Last updated:** 2026-10-14 · **Change:** minor (zoom row: soft proofing sharp at 1:1; canvas tools by keyboard; focus-order test; ~50 unnamed hand-drawn widgets named) · **Target:** Adobe Lightroom Classic 15.5 / Lightroom 9.6
 
 How LightCraft's interaction compares with Lightroom's: views, panels, tools and handles, modifier
 keys, shortcuts, zoom, context menus and feel. Rows for individual menu items and shortcuts live in
@@ -27,7 +27,7 @@ assessment and the notes that don't fit a row. Visual reference for agents: `pla
 | Crop, Upright, transform handles | handles, aspect lock, angle, overlays (O / ⇧O), guided Upright | ✅ all of them; overlay cycle on ⇧O | 85% | crop opacity of cut-out area (15.5) |
 | Masking tools | brush (A / B, flow, density, auto mask, pressure), linear / radial, range masks, AI masks, pins | brush, linear, radial, colour / luminance range, add / subtract / intersect / invert, masks panel, pins | 60% | brush live preview (#517 / #518), no pen pressure, no depth range, AI masks, Feather / Edge controls (15.5) |
 | Remove / heal | content-aware remove, heal, clone, visualize spots | heal, clone, auto source, visualize spots, red / pet eye | 65% | content-aware (patch synthesis) remove, generative remove, detect distractions |
-| Zoom and navigation | Fit / Fill / 1:1 / 2:1 … 11:1, Navigator, spacebar pan | Fit to 800%, pinch zoom, pan, Navigator-like | 60% | **original-pixel detail at 100% with a mask overlay or soft proofing** (no zoom window there; Detail, Before/After, Compare and Reference have them; P0 gap LR-VIEW-ZOOM) |
+| Zoom and navigation | Fit / Fill / 1:1 / 2:1 … 11:1, Navigator, spacebar pan | Fit to 800%, pinch zoom, pan, Navigator-like | 60% | diagnostic overlays (Visualize Spots, Point Color range, HDR range) render the whole frame instead of a zoom window; everything else, mask overlays and soft proofing included, is sharp at 1:1–8:1 |
 | Library culling and metadata | ratings, flags, labels with keys, painter, keywording, metadata panel, filter bar | ratings / flags / labels and advance, keyword list and sets, keywording box, metadata fields, smart albums, filter bar | 85% | painter tool, quick collection, some Classic keys |
 | Shortcuts | Lightroom desktop and Classic keymaps | Lightroom-desktop keymap with Classic additions, editable | 85% | deliberate differences below; no Classic keymap layer |
 | Context menus | everywhere | 26 sites (grid, filmstrip, albums, folders, keywords, masks, presets…) | 70% | unaudited against Lightroom's menus item by item |
@@ -135,6 +135,7 @@ a real screen reader on any platform yet.
 | 2026-10-13 | minor | Library culling: backtick cycles the flag; ⌘↑ / ⌘↓ raise / lower flag status |
 | 2026-10-13 | minor | KEYC-COMPARE: `=` / `-` grid thumbnail size keys noted in the shortcuts section |
 | 2026-10-13 | minor | Shortcuts: Home / End and Shift+Left / Right in the two library grids, Cmd+O (Open Library…) and Shift+H (Visualize HDR) get bindings and keyboard tests; percentages and the dated counts above are unchanged |
+| 2026-10-14 | minor | Zoom row: soft proofing gets zoom windows; LR-VIEW-ZOOM gap closed |
 | 2026-10-12 | minor | Accessibility: an AccessKit tree audit test over every view, Develop tool and 13 dialogs; unnamed fields, slider ranges and the Auto Stack slider fixed; 30% → 55%; UI remaining 40–70 h → 34–58 h |
 | 2026-10-11 | minor | Zoom row: Compare and Reference get zoom windows; what remains of LR-VIEW-ZOOM is overlays and soft proofing |
 | 2026-10-10 | major | Created: measured command and shortcut counts, assessment by area, estimates; moved the shortcut conflicts section here from the checklist |