This makes sense. I guess you plan to combine and convert them on the PC ?
horizontal (with the normal landscape camera orientation) strips should be much simpler than vertical ones
since you can just write() a continuous chunk.
A fullsize image is fine, the strip has the wrong colours.
Make sure your strip starts on an even row and is an even number of rows high.
I may have a problem correcting vignetting and barrel distortion because the strips are each side of centre.I assume lens corrections are normally computed radially about the centre.
If allowed by the DNG standard, I may decide not to have a thumbnail.
DNG 1.3 opcodes for geometric and vignetting corrections allow you to specify the location of optical center in the image.
in this case the main raw image goes into IFD0, rather than the thumb.
(I guess this should be a separate topic but too late now)
Surely the 'optical centre' will be outside each image strip ?
one can try and see if dng_validate swallows it.
Just tried. It doesn't. Says "Error: File format is invalid". ACR doesn't like it either. Out of luck, that is.
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