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02/25/2006 04:41:28 PM · #1 |
I used to shoot RAW with my previous camera, but shooting RAW with the 5D is a whole new kettle of fish. So can someone please answer a couple of simple questions for me.
Where can I read the EXIF information on a RAW image to see if it has been modified or not?
Also, when entering a challenge and you have shot the image in RAW+JPEG, what version do you upload....the RAW or the JPEG?
Judi |
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02/25/2006 04:45:28 PM · #2 |
I use my RAW image, make some changes, then convert to JPEG for some additional changes in Photoshop, then upload via Save For Web in JPEG format.
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02/25/2006 04:45:45 PM · #3 |
You're right, RAW on the 5D, with the 11 to 14MB files, is a bit different.
A RAW image cannot be modified, as we're used to thinking about it. Tags telling a converter how to interpret the file can be re-written, but the RAW data are not changed by any editing program I aware of.
If you shoot RAW+JPG, both are valid originals, provided, of course, that the JPEG is unedited.
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02/25/2006 04:45:55 PM · #4 |
I uses Opanda EXIF works well. Just open opanda and the raw file and it will give you all the EXIF needed.
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02/25/2006 04:53:07 PM · #5 |
Originally posted by rasdub:
I use my RAW image, make some changes, then convert to JPEG for some additional changes in Photoshop, then upload via Save For Web in JPEG format. |
RASDUB -
I should have reworded that...sorry I am still tired from shooting yesterday from 5-30am to 10-00pm.
I should have written...what version do you upload for verification when requested.
KIRBIC -
Ahh, I didn't know that. I have heard that different viewing programmes can alter the EXIF information at times and this was my concern. Before I upload my entry I always check my EXIF information to ensure nothing is showing as being altered and that is what I wanted to check with the 5D RAWs.
With the original JPEG's I always duplicate first and then do any altering as there have been occasions where I don't need to do any work on the RAW images in the RAW program. Which as a matter of interest I use Adobe PS CS2 to open my RAWs.
So with this programme are you saying the RAW file doesn't get altered at all.
SOUTHERN EXPOSURE -
Thankyou for that link. I will go and check that out.
Judi
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02/25/2006 06:48:07 PM · #6 |
You cannot modify a RAW file, that is why it is called a digital negative. When you 'edit' it, what you are doing in reality is making a list of instructions that get saved with the file - the file itself is not changed, so you can use it for verification. Since both are the same, you can use ether for verification. I see no reason to shoot both - if you want jpegs, shoot jpegs. you want RAW, shoot raw. about the only tie i could imagine you'd want both was if you were shooting a wedding and wanted to do a slideshow at the reception (with the jpgs) and RAW would be for the album/prints later on. But then I see little sense in such a slideshow, but that's me.
Try using Canon's DPP - online video tutorials are here - //photoworkshop.com/canon/ . Very nice powerful program once you get to know it as it is not very intuitive, kinda like PS in that respect.
99.9% of editing programs will alter ther EXIF info to show that the file has been edited (or opened in an editor). RAW files don't change - even the last modified date remains the same!
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02/25/2006 07:15:47 PM · #7 |
Originally posted by Prof_Fate:
You cannot modify a RAW file, that is why it is called a digital negative. When you 'edit' it, what you are doing in reality is making a list of instructions that get saved with the file - the file itself is not changed, so you can use it for verification. Since both are the same, you can use ether for verification. I see no reason to shoot both - if you want jpegs, shoot jpegs. you want RAW, shoot raw. about the only tie i could imagine you'd want both was if you were shooting a wedding and wanted to do a slideshow at the reception (with the jpgs) and RAW would be for the album/prints later on. But then I see little sense in such a slideshow, but that's me.
Try using Canon's DPP - online video tutorials are here - //photoworkshop.com/canon/ . Very nice powerful program once you get to know it as it is not very intuitive, kinda like PS in that respect.
99.9% of editing programs will alter ther EXIF info to show that the file has been edited (or opened in an editor). RAW files don't change - even the last modified date remains the same! |
Thankyou so much for this. This is what I needed to know. I have actually been contemplating just shooting RAW (with no JPEG) and I, also, cannot see any reason for RAW+JEPG...so thankyou again for helping me to decide the best way to go.
Judi |
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