RAW vs JPG

bwana said:
I was looking at some of these these so called super zoom P&S side by side with the smaller dSLRs the other day and there really isnt that much between them in terms of bulk. Since I cant put either in my pocket it makes it a really simple decision.
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You have a point .... that particular one is pretty large. The SX110is I could put in my pocket though
 
BigAl-sa said:
and one that MyWorld would appreciate is RawTherapee, as it runs under Linux ;)
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I use UFRaw in Linux.
The proprietry bit is true, is you want to get the best out of RAW you need your camera's ICC colour profile and this is rarely made available. You have to use a hit-and-miss technique to find the best colour results.
 
Dolby said:
As a n00b - what's the difference?

I'm guessing HUGE and totally uncompressed with RAW?
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Since I am not an engineer, that works with this stuff, I can't answer your question. But what I do know is that the difference is mostly in the work flow, with very little real-world differences in image quality. I use raw when I want to set my WB in post (or go lower than 2500K, as my D90 only goes to 2500). I also use it when I don't have time to set the DSP or WB. Other than that I mostly use jpg, as my camera is awesome at it. Remember, this is not always the case. Almost all Canons, that I have used, gave me better quality in raw (how are the new Canons at jpg, myBB?), so I guess it depends on the camera. I don't know. Just my 2 cents. :)
 
MyWorld said:
I use UFRaw in Linux.
The proprietry bit is true, is you want to get the best out of RAW you need your camera's ICC colour profile and this is rarely made available. You have to use a hit-and-miss technique to find the best colour results.
Click to expand...
ufraw is pretty cr@ppy for the canon 40d. I've figured out the problem using dcraw's command line options and sent it to ufraw's author, but he's not responded. RawTherapee's author has adapted how his software uses dcraw for the 40d and has pretty decent results.
 
MyWorld said:
I use UFRaw in Linux.
The proprietry bit is true, is you want to get the best out of RAW you need your camera's ICC colour profile and this is rarely made available.
Click to expand...

Are you saying UFRaw doesn't support the standard sRGB profile (which most cameras use by default). The only thing you should be losing is the camera picture profiles (not to be confused with ICC colour profiles), but you lose that with any application other than the camera manufacturer's own software. Even with Aperture, Lightroom, Capture One - those things are out the window. Lightroom have their own camera profiles, but they're not the same as the camera manufacturer's.

BigAl-sa said:
ufraw is pretty cr@ppy for the canon 40d. I've figured out the problem using dcraw's command line options and sent it to ufraw's author, but he's not responded. RawTherapee's author has adapted how his software uses dcraw for the 40d and has pretty decent results.
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Have you tried that shot you posted a while ago again? The one where the lamp post (was it?) in the background completely disappeared?
 
Are you saying UFRaw doesn't support the standard sRGB profile (which most cameras use by default).
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Yes of course UFRaw uses the standard SRGB profile, but not all cameras use the standard.

On this page you will find some profiles for Nikon and Canon:
http://ufraw.sourceforge.net/Colors.html
If you go through the page you will notice the three images on the right (the blonde dude/girl/whatever) processed with different profiles and the results.

You can find more profiles for more cameras here:
http://www.dl-c.com/Temp/downloads/download_content.html

Nit picking, I know...

For more on ICC profiles and the little difference they make:
http://meetthegimp.org/episode-11-raw-converting-with-ufraw/
 
I prefer RAW over JPG since it gives me more control over the photos in post processing. With my 30D, however, I can shoot both RAW & JPG at the same time so it's very useful :)

And, for a good free tool, download irfanview + raw plugin
 
koffiejunkie said:
Have you tried that shot you posted a while ago again? The one where the lamp post (was it?) in the background completely disappeared?
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The ufraw version in the Ubuntu repositories is still 0.15. I tried to build 0.16 from source, but kept running into dependency issues so I gave up.

In this dcraw tut (command line boffs should love it), the author shows how dcraw's default saturation fails with the 40d and how to overcome it. ufraw uses dcraw's defaults, and gives you no way to change it.
 
I like command-line tools, but after using Aperture for two years, I cannot see myself doing this kind of work with a command-line tool.
 
koffiejunkie said:
I like command-line tools, but after using Aperture for two years, I cannot see myself doing this kind of work with a command-line tool.
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:D :D

Only reason I did it was to confirm that I had the same problem. Painful is really not the word for trying to do colour correction from the command line - masochistic is better :D
 
Apart from what already have been said, RAW is only writable by the camara and no other software will be able to produce a Camara RAW file. i.e Your original Negative, so there's no chance of saving over it by accident. Also helps prove that you shot the photo when you suspects that someone used your photo without your permission, since only you can produce the orignal.
 
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