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darktable is an open source photography workflow application and raw developer
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Phase One H25 #7308

Open RobertoQ opened 3 years ago

RobertoQ commented 3 years ago

I have uploaded two raw samples from an old Phase One H25 digital back (there is no camera metada as was connected to an old Hasselblad 503CW). One photo is an outdoor of Porto an the other an IT8.7-2 card. The first is compressed in IIQ format and the other is uncompressed. Both are under CC license. dt only recognize a thumbnail of 340x255 but the raw size is 4096x5456 (Lightzone do it right but I prefer work with dt). Future support is appreciated. Thanks.

LebedevRI commented 3 years ago

Thank you for contributing the samples!

LebedevRI commented 3 years ago

@RobertoQ i'm failing to find PDF manual for that camera, so i guess i need to ask: does that camera has any other raw modes? IIQ-L/IIQ-S? or is that IIQ the only variant it can write? It appears that the IIQ raw sample that was contributed has raw compression that is not supported by rawspeed currently.

RobertoQ commented 3 years ago

Hello Roman, sorry for the delay in response but as actually the digital back (H25) is not in my studio I need to remember looking for manuals or notes the specifications. I believe H25 didn't produce compressed files but only uncompressed TIFF. The IIQ option is a software addon (Capture One), both IIQL or IIQS and I think it was only in some versions (3 or 4). So I need to go to the High School (where digital back is located) I teach photography and take new photos using different Capture One versions to see what files produce the software as H25 only works tethered to Capture One. As I have all Capture One versions saved there is no problem, only the time I need for doing this job. I think at the end of the week I could send you the files. Thanks for your great job, Roberto Quintero

El vie, 8 ene 2021 a las 19:21, Roman Lebedev (notifications@github.com) escribió:

@RobertoQ https://github.com/RobertoQ i'm failing to find PDF manual for that camera, so i guess i need to ask: does that camera has any other raw modes? IIQ-L/IIQ-S? or is that IIQ the only variant it can write? It appears that the IIQ raw sample that was contributed has raw compression that is not supported by rawspeed currently.

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github-actions[bot] commented 3 years ago

This issue did not get any activity in the past 30 days and will be closed in 365 days if no update occurs. Please check if the master branch has fixed it and report again or close the issue.

kmilos commented 4 months ago

It appears that the IIQ raw sample that was contributed has raw compression that is not supported by rawspeed currently.

FWIW, the Unsupported RawFormat: 0 seems to be just an uncompressed (little endian) byte stream (w/ some unknown/padding bytes at the end): image

@boardhead