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Noise And Color Issues With RAW, Advice Neeed.

Thu May 21, 2009 2:42 pm

I've tried recentIy shooting in RAW. Problem is I get a ton of noise while shooting in RAW, that is not present when I shoot in JPEG. I've tested this by shooting RAW+JPEG at times.

In Adobe Raw, should I be reducing noise? If so how much? For example in RAW under the Sharpening Tab, there are two options for Noise Reduction, one is a slider for Luminance and one for Color. What do you guys adjust to? I've played around with the Luminance slider, and it could really use 100%, all the way to the right, but this probably reduces detail too. I don't notice any improvement when I adjust the color slider.

I'm just at a bit of a loss here because I started shooting all my shots in RAW lately, but I'm now getting rejections for Color, Quality, etc that I normally do not get. I believe the Quality rejection I recently got was in part due to the grain that was present in the photo. If I had just shot it in jpeg I doubt I would have encountered this problem.

I also got a recent rejection for Color. In fairness, I created other problems in the photo with a poor crop job, but I have to learn the whole color process is RAW now too. I'm guessing my Color issue is related to White Balance adjustment. I'm guessing it is White Balance related because I did not adjust anything else having to do with color. How do I know which white balance setting to use? The "As Shot" setting usually looks accurate, but I'm not sure. Like I said, my very first one I got rejected for Color. Another rejection I would have probably avoided if I would have just shot in jpeg.

So can anyone offer any suggestions on Noise Reduction in RAW, how much, which type, etc. and how to determine which White Balance setting to use ?

Thank you!
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RE: Noise And Color Issues With RAW, Advice Neeed.

Thu May 21, 2009 4:50 pm


I use Canon's Digital Photo Professional to handle my RAW files for any minor RAW adjustments before converting to .TIFF and then opening in Photoshop to start my workflow. Therefore, I'm not familiar with Adobe RAW. As far as I know, there is no 40D RAW support for CS2 (which is what I'm still using) so I have to handle RAW adjustments before using Photoshop. However, I did mention in another thread that with my 400D, when opening the RAW in Canons DPP, noise appeared greatly exaggerated but once I converted to .TIFF and opened in photoshop, it was back down under control. Not sure why that was...

I don't mess with that RAW noise reduction much...too much loss in quality so I dunno.

As far as color, I'm not sure why switching to RAW would cause you any new color issues unless you have changed something since switching from JPEG. If you were successfully shooting JPEG and then switch to RAW, all parameters having any kind of effect on the photos should be the same as when shooting your JPEGs..the only difference is now with RAW, you can adjust those parameters later.

Anyway, I sent you a PM

[Edited 2009-05-21 09:55:40]
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RE: Noise And Color Issues With RAW, Advice Neeed.

Thu May 21, 2009 4:59 pm

Ron, play around with sliders at 100%(!!) if you find what you like keep the settings.
I don't do any noise reduction in the RAW converter instead of that I'm using NeatImage in PS.
Your camera does everything for you when you're shooting in jpeg, with RAW you need to do everything yourself. That's why people like it so much, you have control over the whole image and the amount of data available in a RAW file is much more than in a compressed jpeg.
WB is also very easy, try them all out, including custom and if you like one keep it. For custom WB just click on a neutral gray area of the image, like the runway.
I'd say keep on shooting in both RAW and jpeg, get yourself familiar with the RAW conversion to take full advantage of it.
Check out Mark S. Johnson's video tutorials.


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