Camera Raw/Lightroom: Support for PhaseOne Trichromatic

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  • Updated 4 days ago
  • (Edited)
I use a medium format system produced by Phase One, with their newest "Trichromatic" sensor -- a CFA unique to this sensor. With each passing update to Adobe Camera Raw (there have been three since this camera was released) I grow a little more desperate as it becomes clearer and clearer Adobe doesn't seem to have any sense of priority regarding raw developmentfor this camera system.

It's awkward on set and has unbalanced my post production workflow, not to be able to access raw data for my main work camera. Exporting TIFFs and PSDs from Capture One can only get me so far, and instances where I need raw data (like bracket stacking to HDR) it's not possible to obtain a quality match of real raws, since TIFFS and PSDs are merely instances of those files not containing all the data.

I understand the fractional volume of these systems on the market probably plays a role in how Adobe prioritizes ACR development...but it's a top tier professional system, and it really surprises me that over the past nine months Adobe hasn't figured out how to make heads or tails of these raws. I know the Adobe and Phase One teams have a communicative working relationship...so does anybody have insight or info on what might be causing the delay?
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Richard Thompson

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Posted 3 weeks ago

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Jao van de Lagemaat

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Pity that Phase One doesn't support dng in camera as it would give you out-of-the-box support.
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Pete Green, Customer Advocate

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Hi Richard,

Sorry these trichromatic image files aren't working correctly for you. In our testing thus far, sample files are opening just fine.

Are the files not opening in Camera Raw or rendering incorrectly?
Which version of Camera Raw do you have installed? 

Can you provide more info on what's not working for you, perhaps even provide a sample file or two for me to pass on to our engineers for further testing so we can investigate this?

Provide more information about your workflow, and what steps we can try to reproduce the issue you're seeing, and we'll see what we can do.

Get back to us when you can.
Regards,
Pete
(Edited)
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Richard Thompson

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Thanks Pete,

ACR version 10.3.0.933

Here's a dropbox with a few files:
https://www.dropbox.com/sh/1v9ltq67yrssm98/AAAjChbTr7_T3Pf_4kOt_Edja?dl=0
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Pete Green, Customer Advocate

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Thanks Richard -- I'll pass this link to our engineering team to investigate further.. Will get back to you when I have more information to share. 

Sorry for the trouble opening the image files in the meantime.
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Chris Castleberry, Camera Raw Engineer

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Hi Richard,

Thank you for supplying the images. I have a preliminary implementation working for the camera, and would like to get an additional calibration image from you if possible.

Would you be able to upload an image made under incandescent lighting with a color checker in the scene?

Thanks,

- Chris
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Richard Thompson

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Chris,

Amazing! I have added the file you requested to the above folder, you will see it named very obviously. The file was provided to me by Digital Transitions LA as I didn't have a color checker handy but the file was produced in reference to this case. The image is lit with a Profoto strobe.

I think you may also find this expertly written blog post to be informative if you are interested in the differences between the CFA on this sensor and the standard 100MP back. You would be particularly interested in Parts II and III :-)
http://www.strollswithmydog.com/phase-one-iq3-100mp-trichromatic-linear-color-i/
http://www.strollswithmydog.com/phase-one-iq3-100mp-trichromatic-linear-color-ii/
http://www.strollswithmydog.com/phase-one-iq3-100mp-trichromatic-linear-color-iii/
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Chris Castleberry, Camera Raw Engineer

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Thank you!