Camera Raw 6.6: Can no longer import Leaf .mos raw files

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  • Updated 7 years ago
  • (Edited)
The Leaf Aptus 75 Camera Raw .mos files have been importing into Lightroom 3 and Photoshop 5.5. with no problems until about a week ago. I know the .mos format is in the Camera Raw 6.6 list, but for some reason they stopped seeing my files. Now I'm forced to convert them before importing them. Nothing has changed and the files are not compressed. It's just a mystery why this started happening.

In Lightroom 3 the images in the import window are displayed with a blank preview and "Preview Unavailable for this File."

In Photoshop I get this message: "Could not complete your request because the file appears to be from a camera model which is not supported by the installed version of Camera Raw. Please visit the Camera Raw help documentation for additional information."
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D.A. Wagner

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Posted 7 years ago

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Eric Chan, Camera Raw Engineer

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Can you please post or send me an example file? You can contact me at madmanchan2000@yahoo.com (personal email); feel free to use YouSendIt.com, dropbox, etc.
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Joop van Reeken

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Hello David,

Has your problem been solved? Same problem here...

Joop van Reeken
www.reeken.com
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D.A. Wagner

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Yes, still having the same problems. I work with Capture One 6 and I'm suspicious that it's in the C1 program, not in Lightroom.

I sent Eric Chan 2 sample captures - one that reads and one that doesn't read in Lightroom for evaluation, but have not heard back.

It would be very helpful if Lightroom would include the Leaf Aptus as a supported camera back for tethering.
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D.A. Wagner

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P.S. The captures are uncompressed.
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Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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Official Response
Are you shooting compressed files? We only support the uncompressed formats for Leaf cameras.
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Joop van Reeken

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I will check. Thank you!
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Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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Thanks. Let us know what you find out.
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eugene kepler

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I have never had success with PhotoShop in the past. I just wonder if they know what Leaf files are. I can open them in Aperture but the few things that PhotoShop does that I need are not available. I see others have the same problem but I do not see an answer from Photo Shop. I am so disappointed because I was going to take things up a notch and go through the difficult Adobe learning curve but I really do need to open my images.
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Chris Cox

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Again, Photoshop (the s is not capitalized) has supported *uncompressed* Leaf files for quite some time, and many people have been using that support without problems.

Note: Camera Raw doesn't support compressed MOS files from Leaf or Mamiya cameras. If you can't open your MOS file in Camera Raw, try using a camera proprietary converter to remove the compression from the files. (Proprietary converters include Leaf Raw Converter or Phase One Capture One.)
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eugene kepler

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I have been importing the uncompressed images through Leaf Raw Converter. Beyond the import nothing happens when i try to upload them into Photoshop. Just the error message. On a separate note, why doesn't Photoshop support the compressed versions. I would think that adobe would like to have a broad based appeal to medium format cameras as well as the 35 mm sizes.
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D.A. Wagner

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It's both Photoshop and Lightroom (Camera Raw 6.6) that cannot read the Leaf .MOS files coming through my Capture One program. If I shoot with the Leaf Capture, the uncompressed files read. However, Leaf Capture is not as Robust as Capture One, and C1 is my preference.

I've written to Phase One regarding this issue as well, but have not received a reply.
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eugene kepler

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I am not surprised that Phase One did not reply. I removed Capture One from my computer and imported pictures directly onto my hard drive. I then processed them through Photoshop. While I am still lost I am finding my way. Thank you for the fast reply. I think I am on my way to maximizing my photos.
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Joop van Reeken

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Capture One took them compressed, so that will have been the problem. Wasn't my Capture One I was shooting on. Should have checked. Thanks for your support.
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D.A. Wagner

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Maybe I've missed something on an update (currently at v6.3.3) that screwed up my captures. Joop, what did you do to set Capture One to uncompressed? I'm pretty sure my C1 is captures are uncompressed, as I recall double checking the settings. But the big mystery for me was, one day I could import and the next day I could not without making conversions. That's been the big challenge.
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Rob Jarvis

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I'm running Adobe Photoshop CS5 with all latest camera raw updates, I'm still not able to view my compressed files in bridge or directly edit them in Adobe Camera raw. (shot with MAMIYA 645DF + LEAF APTUS-II 8)

I don't want to have to convert to .dng or tiff, I want to directly edit the raw file before any conversion's using Adobe camera raw, I used to be able to do this with the .mos files from my leaf/hassleblad combination.

Now if I shoot using Leaf Capture it lets me shoot uncompressed and I can directly edit the files in Adobe camera raw, if I shoot using Capture One tethered the files are compressed and UN-readable.

My question is why does LEAF capture allow this and not Capture One? and why can't I shoot uncompressed? Will Adobe update it's camera raw so the compressed files can be edited?

HELP!

Rob Jarvis Photography.
MAMIYA 645DF + LEAF APTUS-II 8

"why doesn't Photoshop support the compressed versions? I would think that adobe would like to have a broad based appeal to medium format cameras as well as the 35 mm sizes"
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Jeffrey Tranberry, Sr. Product Manager, Digital Imaging

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Your best bet is to shoot uncompressed.

My guess is the compression is proprietary (Eric could answer definitively) so we don't have the resources to know how to read the compressed file.

See this article on proprietary file formats: Why doesn’t my version of Photoshop or Lightroom support my camera?: http://adobe.ly/ACRandDNG