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Question (P65+ related)

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Old 08-11-2009, 04:24 PM
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DJSoulglo DJSoulglo is offline
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Question (P65+ related)

Hey Guys,

I have a very specific question that has come up this week. We got a nice retouching job in, which shot on a P65+ back and I'm guessing a H3d. Now obviously the 60 megapixel image is nice, but the issue is that when you import the RAW file into photoshop/lightroom there's an error. Adobe software has a slight issue with these images, since the camera has 4 sensors (4x15 megapixel) it reads this wrong. What happens is that the image appears divided in 4 squares, that all differ slightly in color/brightness.

Has anyone had this problem as well? It's not superhard to take out, but it would be better if it wasn't in there.

Any clues?
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Old 08-11-2009, 06:20 PM
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mistermonday mistermonday is offline
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Re: Question (P65+ related)

Photoshop just reads what it gets from the file the camera produces. And it likely converts the RAW exactly the same for all four segments. It would seem more likely that the A/D converters in the Camera are set to different levels for each of the 4 segments or that the Camera is processing each segment slightly differently. I would expect the issue to be the Camera, not PS. Are you able to obtain different results with another image editing program?
Regards, Murray
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Old 08-12-2009, 02:50 AM
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DJSoulglo DJSoulglo is offline
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Re: Question (P65+ related)

Bizarrely when I read the file and convert it with CaptureOne, there's no squares. Already found a thread on the adobe forums, apparantly this is an issue with Lightroom/Adobe.

Guess just wait for a patch and until that time use CaptureOne.
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Old 08-14-2009, 05:58 PM
LennertG LennertG is offline
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Re: Question (P65+ related)

What happens if you use the Adobe DNG Converter?
I use it to open my 5DII files in photoshop.
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Old 08-15-2009, 06:31 AM
girlsfather girlsfather is offline
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Re: Question (P65+ related)

The Leaf Aptus 75 that I own has a chip that has 6 segments.
There is a (factory) calibration file embedded.
That is tagged to every RAW you shoot.
This will work for average shots.

To be more precise you have to shoot a calibration file (using same lens and light - Diffusor in front of lens, exposure apx. 2 stops above) This procuces a file that can be chosen as calibration file and is calculated in the Leaf Software with each processed picture.
The result is a very "clean" picture.

I am shure that is the same physical thing - you need a custom calibration file.
You could talk to the Hasselblad support for this issue.

Good luck!!!
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