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Messages - A Dun

#1
Thanks!

Now that Dual-ISO is14bit digital output,why use cr2hdr export images, the image becomes 16bit?Is this 16bit interpolated by cr2hdr?
#2
If you use dual ISO without cr2hdr decoding can get 16bit uncompressed photos,why is the photos using dual ISO taken as the same size as the photos taken without dual ISO?Does it say that the increase in bit depth does not cause an increase in the size of the photo?Or increase the value of bit depth equal to the loss of pixels?
#3
When I export photos with cr2hdr, the file becomes 44M.What information is added?Interpolated pixels?