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UnemarsandClaude Opus 5.5
5bcedbe6fc
The D4 records no CropArea. Its 4992 x 3292 data keeps 2 columns of optical black left of the image and 42 right of it (then 8 empty ones), which showed as purple stripes on both sides; the camera's own 4928 x 3280 JPEG sits at (8, 6). Green saturates at 15546-15672 while red and blue run on to 16383, so the data's own top left clipped highlights magenta; one level of 15520 keeps them white without moving the white balance. Measured on 148 uncompressed 14-bit NEFs from one body by aligning the sensor data with the embedded camera JPEG. Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>