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DPChallenge Forums >> Tips, Tricks, and Q&A >> Questions about RAW
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 02/08/2006 03:53:03 PM · #1
I shoot RAW+Jpeg and 99% of the time use the RAW file and process is through RSE. After my little DQ in the Leading Lines challenge, I learned not to upload images via ACDSee. I used to shoot just jpegs back then too.

Anyway, here's the question: If you take a RAW file and process it via RSE, can you submit the processed RAW file (*.cr2) for image validation? Or should I submit the ones direct from my card? So far I've been submitting validations via uploading from my memory card.

Anyone? Does SC have anything to say regarding this issue? Thanks.

Rikki
 02/08/2006 03:58:43 PM · #2
As far as I understand it...

RAW files can not be modified by your computer (or anything else). So when you open your raw file in Photoshop (or RSE) your changes are made in what is called a "sidecar" file. This file tells Photoshop (or RSE, or anything else) what changes to make to the photo automatically the next time you open it. Here's what's going on behind the scenes...

1) Open a RAW file in RSE
2) Make some adjustment
3) Click 'save'
4) RSE at this point creates another file with the processing instructions. In Bridge/Photoshop these are .XMP files. I dunno what RSE does.
5) Click close. Your .RAW is still the same as it was at this point.
6) Re-open the image in RSE and it will behind the scenes open the sidecar file and apply those processing steps to the image before it renders it to you.

I've been opening the original in Adobe RAW, applying my RAW processing, and then sending that to PS/CS2 and then editing and saving as a .PSD.

Repeat, your computer is incapable of making any changes directly to the raw file. It's a closed file format, and Canon only told Adobe how to read it, not to modify it.

---A
 02/08/2006 04:00:19 PM · #3
A "processed raw file"? That would be a jpg or tif file... The raw file itself is never touched. If you shoot raw, keep the raw file around and upload that one if the original is ever requested.

If you're shooting raw+jpg, you could upload the original jpg as well ... so long as you haven't edited it (that includes not allowing ACDSee to "rotate" the image for you - which is the only problem I'm aware of with ACDSee touching the image).
 02/08/2006 04:12:25 PM · #4
i typically edit my RAW files at home process them and submit the image the night before a challenge. however, i do email myself copies of the files that i used so that i can edit them as well at work plus i just like comparing my images with 3-4 different monitors. so this means i have RAW files here at work. for validations, i can submit these files that i have here without actually using the ones straight from the card. right?

thanks for the input guys. very much appreciated.

rikki
 02/08/2006 04:14:21 PM · #5
Rikki,

Yes, you should be able to submit any copy of a .RAW file, from your memory card, hard drive, CD/DVD, another computer, whatever.

Edit: to say if they let me install Photoshop on my work computer I'd never get anything done. ;)

Message edited by author 2006-02-08 16:15:05.
 02/08/2006 04:38:27 PM · #6
Hey Andrew! Thanks man! Yeah I'm spoiled here at work. I have the latest and greatest stuff. I usually beta-test programs as well. When CS came out and they (IT) loaded it on my machine, everyone was asking where I got it and why? Hehehehehe. That's what happens when you are "deemed" an expert in using the program. I have the full Adobe Creative Suite on my machine. I'm supposed to test CS2 when we purchase it so I can't wiat for them to load that on my machine as well. Am I spoiled? I dunno. It depends on how you look at it I guess ;P

Ok so back to the program.

Thanks for the information. I sent files over for validation but with a disclaimer saying,"If these RAW files are not acceptable, please let me know so that I can upload the RAW files directly from my memory card".
 02/08/2006 04:50:23 PM · #7
Hey Rikki, I totally recommend this book Real World Camera RAW for Adobe CS2 if you are interested in learning more about RAW. It's a very quick read with great info and examples. I swear, after reading this, you will wind up doing most of your processing in RAW before even touching the pic in CS2.
 02/08/2006 04:58:57 PM · #8
Originally posted by macpapas:
Hey Rikki, I totally recommend this book Real World Camera RAW for Adobe CS2 if you are interested in learning more about RAW. It's a very quick read with great info and examples. I swear, after reading this, you will wind up doing most of your processing in RAW before even touching the pic in CS2.


I've got a copy I'm looking to sell.
It is way over priced for what little content is in it. Should be a web page, not a book.
 02/08/2006 05:27:09 PM · #9
Originally posted by Gordon:
Originally posted by macpapas:
Hey Rikki, I totally recommend this book Real World Camera RAW for Adobe CS2 if you are interested in learning more about RAW. It's a very quick read with great info and examples. I swear, after reading this, you will wind up doing most of your processing in RAW before even touching the pic in CS2.


I've got a copy I'm looking to sell.
It is way over priced for what little content is in it. Should be a web page, not a book.


Can't necessarily argue the point, as I only read the first half of the book (the 2nd half covering workflow is also covered in many other PS books). However, the first half offered insights into RAW processing that I personally have not seen before in PS books (re around image degradation when using PS). The book also got straight to the point (IMO), without a lot of fluff or pomp and circumstance presented in the myriad of PS books out there. It also did a good job describing how the different tools work/interact with one another, thus giving you a process for editing your images while maintaining maximum image quality (again, haven't seen that in the many how-to PS books out there). I do agree, it would make a nice pamphlet versus a book, but the info in it was unique and poignant (again, IMO).
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