7D Noise - Unusually high at low ISO

[freelanceshots]

Different scenes can exhibit different noise levels even at low ISO's. Your example seems like a dark image anyways so one way to maybe improve on the noise there would be to slightly over expose and then back it down with your software. That usually would mean shooting at an even higher ISO but dark scenes just create noise. When I shoot with my 5D2 in a dark room at ISO 200 at slow shutter speeds I can really start to see noise as well. Its just a fact. If your camera is under warranty then I'd send it in if your really concerned. Most likely they will send it back to you and say they looked at it and even tweaked it but you will see the same results once you get it back. Its your call. If you process it in DPP do you have any level of noise reduction selected? What's the noise reduction setting that you have set in camera?

[neuroanatomist]

Every digital image has noise. Every image. The only questions are how much noise...and how close you look. Noise is more evident in dark areas of a photograph, and also areas which lack detail (out of focus background) - it's there in lighter parts with lots of detail, but there your brain has other stuff to pay attention to, whereaswith lack of detail, you try to see something...and what's there is noise.


Looking at your image and crop, I'd say what you're seeing is perfectly normal.


Here's an ISO 100 shot from the 7D, and below that are 100% crops of a light area (near the top) and a dark area (near the bottom right). These were processed with DPP; I think DxO does a better job at NR, so the noise is a little less evident (but still present).



[url="http://www.flickr.com/photos/dr_brain/4745141175/in/set-72157624491646603/lightbox/][/url]
EOS 7D, EF 85mm f/1.2<span style="color: #ff0000;"]L II USM, 1/6400 s, f/1.2, ISO 100


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[Rocco]

Thanks for the replies. Once again, my monitor on my laptop is a major source of annoyance for me. (nearly impossible to calibrate, too.) You should see how much brighter the image is on my screen at home.. which makes photo edits a really big challenge for me. Now that I

[andnowimbroke]

Cameras don

[Rocco]

Compromise has consisted of eyeballing the histogram in camera and in post. Still not 100% what kind of pictures you guys are actually seeing from me. The images I posted above were taken when I was testing auto focus and IS, my goal primarily to not get my shutter speed or ISO too high, thus the darker than usual image.


As far as monitors go, Tax returns will not yield any lenses this year, but instead a new computer with two of this monitor: www.newegg.com/.../Product.aspx


Words cannot describe how excited I am to get started on a computer build.