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DPChallenge Forums >> Tips, Tricks, and Q&A >> What does this mean?
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05/09/2005 03:46:21 PM · #1
in the rules... if you need to show photo proof... what does this mean: "This original photograph must contain valid, unaltered EXIF data"

and how to I make sure my photos have it?
05/09/2005 03:48:21 PM · #2
All photos have it as long as you don't edit them in any way. When you edit you should always work on a copy do your camera files stay untouched.
05/09/2005 03:48:49 PM · #3
Just keep the original file, exactly as it came from the camera card, in a safe place, and edit a copy. That original file is what you'll have to upload to us if requested. If you don't do anything to it the EXIF data will be there.
05/09/2005 03:49:17 PM · #4
Originally posted by amcfoto:

in the rules... if you need to show photo proof... what does this mean: "This original photograph must contain valid, unaltered EXIF data"

and how to I make sure my photos have it?


YES. You must upload the original, unedited, file with valid EXIF data. That's a good reason to work from a copy of the original.
05/09/2005 03:50:06 PM · #5
FAQ link
05/09/2005 03:50:45 PM · #6
Man, The SC is quick today. Thread had three replies within 1 minute, first two from SC members...good job SC.
05/09/2005 03:53:46 PM · #7
thanks everyone.

Thats what I thought but I wasn't sure. I always edit from a copy and save the originals so i guess I don't have to worry! :)
05/09/2005 03:54:21 PM · #8
Originally posted by SDW65:

Man, The SC is quick today. Thread had three replies within 1 minute, first two from SC members...good job SC.

Thanks! Note that we are eight time zones apart as well ... and that we're each probably supposed to be elsewhere : )
05/09/2005 04:17:31 PM · #9
Since the SC is looking to help... I could use a backrub.
;-)
05/09/2005 04:20:34 PM · #10
sc?

05/09/2005 04:22:01 PM · #11
Originally posted by dewed:

sc?

//www.dpchallenge.com/help_about.php
05/09/2005 04:23:19 PM · #12
Originally posted by dewed:

sc?


SC= Site Council

(or in Strikeslip's case... Sorry, Charlie).
05/09/2005 04:28:06 PM · #13
Originally posted by scalvert:

Originally posted by dewed:

sc?


SC= Site Council

(or in Strikeslip's case... Sorry, Charlie).


sad.jpg
05/09/2005 05:52:11 PM · #14
This must be eval time for the SC, they're all bucking for position, raises, fiscal year-end bonuses, etc., At stake, I believe, is who gets use of the company car, keys to the executive wash room, corner office with the nice views, etc.
05/09/2005 06:25:21 PM · #15
Question: Do you accept files that have been converted to DNG, as long as all of the EXIF information is intact?
05/09/2005 06:36:18 PM · #16
Originally posted by Zed Pobre:

Question: Do you accept files that have been converted to DNG, as long as all of the EXIF information is intact?


The file should be in its original, unconverted format.
05/09/2005 06:38:09 PM · #17
I'm sure this is a dumb question, but if you open the file in PS, immediately save it as a TIFF or PSD and then work on that, is the exif data okay or does the fact that it was opened in PS at all cause problems? Not that I've ever gotten close enough to a ribbon to worry about it :( but just in case I get better over the summer!
05/09/2005 11:37:15 PM · #18
Originally posted by dipaulk:

I'm sure this is a dumb question, but if you open the file in PS, immediately save it as a TIFF or PSD and then work on that, is the exif data okay or does the fact that it was opened in PS at all cause problems? Not that I've ever gotten close enough to a ribbon to worry about it :( but just in case I get better over the summer!

I'm not quite sure what you're asking. Scalvert has just said that you have to submit the original, not the TIFF or PSD. You won't damage your original by opening it if you don't save over it, but if you're feeling very paranoid, copy your original to a working directory before opening, so you never touch the original at all for any reason.

As an aside, Photoshop does save most (though not all) of the EXIF information in the PSD/TIFF formats, and what it doesn't save you probably won't miss.
05/09/2005 11:56:01 PM · #19
We cannot accept PSD files. So I'm pretty sure we can't accept the other one either. If it is saved in Photoshop, then the exif will show that and then we don't know one way or another if you edited the photoshop version or not. So NO don't save it in ps first.
05/10/2005 12:26:40 AM · #20
Also, be sure that your camera supports EXIF data.
05/10/2005 12:27:03 AM · #21
Digital Photo Professional saves all of the EXIF data when it converts to jpeg. It does show Digital Photo Professional under "Creation Software" though. Would it be okay to submit a jpeg like that as proof of an original?
05/10/2005 12:28:48 AM · #22
Originally posted by dipaulk:

I'm sure this is a dumb question, but if you open the file in PS, immediately save it as a TIFF or PSD and then work on that, is the exif data okay or does the fact that it was opened in PS at all cause problems? Not that I've ever gotten close enough to a ribbon to worry about it :( but just in case I get better over the summer!


When you "save as" the original file remains intact anyway. That's the correct thing to do. Never do anythign witht he original but open, and immediately save-as somethign else altogether. Then you're safe.

Robt.
05/10/2005 12:36:33 AM · #23
Originally posted by wgoodey:

Digital Photo Professional saves all of the EXIF data when it converts to jpeg. It does show Digital Photo Professional under "Creation Software" though. Would it be okay to submit a jpeg like that as proof of an original?

No, it's not the original file as captured by the camera.
05/10/2005 02:00:33 AM · #24
One thing I've started doing is locking all the pictures that I've taken (from the camera) and when I DL them to my computer they have become "read only" files. You can still work with them, but you can't save over them.
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