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How do I get the "rawest" data possible?

Hello,

I have a question concerning the unpack()-Method. I read in the API documentation that the black level may or may not be calculated and subtracted and some other things might happen during unpacking as well. What do I do to get the rawest data possible? Should I calculate the blacklevel manually from the masked pixels and add it back to all pixels? Also, when using the imgdata.color.maximum field, I get a value of 15600 for a 14bit file format (Camera: Canon Mark II 5D) which should be 16384? It is very important for me to have access to the most unprocessed data and I would be very happy if you knew the answer to this problem.

bye, Peter

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