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DPChallenge Forums >> Tips, Tricks, and Q&A >> Cropped RAW ok for validation?
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02/11/2006 05:15:40 PM · #1
If I were required to validate a shot, and I had cropped it in Adobe Bridge, would that still be a valid file for validation?

Just curious.
02/11/2006 05:17:04 PM · #2
Quick answer, no. Long answer, we need the 100% original as-from-camera image, not a version that has been edited in any way.
02/11/2006 05:20:04 PM · #3
But just to play devil's advocate...if 100% of the 640pixels are within the crop of the RAW file, what does it matter? I assume the EXIF is no different than if you changed anything else like WB, tint, contrast, etc.
02/11/2006 05:27:10 PM · #4
Originally posted by DrAchoo:

But just to play devil's advocate...if 100% of the 640pixels are within the crop of the RAW file, what does it matter? I assume the EXIF is no different than if you changed anything else like WB, tint, contrast, etc.

I assume that wouldn't be valid because it has been modified/tampered with. SC requires an unmodified original for validation.
02/11/2006 05:28:35 PM · #5
You check this box each time you submit to a challenge:

If requested, I will provide the unedited, original file from my digital camera within 48 hours.

cropping a photo means it's no longer an unedited, original file.
02/11/2006 05:34:41 PM · #6
I think maybe I didn't realize that the cropping and adustments don't alter the original RAW. It didn't seem like I could "undo" my crop in Bridge. However, I believe the original RAW is still intact. It doesn't matter for this challenge anyway as I still have the original on the card too, but I was curious about things in the future.
02/11/2006 05:46:29 PM · #7
RAW files are read only.

I don't believe it's possible to edit a re-save a RAW file.

bazz.
02/11/2006 07:11:32 PM · #8
Originally posted by sir_bazz:

RAW files are read only.


Tell that to the developer of Nikon Capture software.
Capture embeds the changes in the raw file and makes a mess of the original exif. Unlike some other programs that leave the raw file alone and put all the settings in a settings file by default. Not that I mind, but it is something to watch out for.

When you work on a photo for dpc, simply make a copy of the original and work on that one. It can never go wrong that way.


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