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Old Sep 12, 2005, 12:41 AM   #1
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Hi guys,I have been using my D Rebel XT for about 3 months... absolutely happy with it... but recently I noticed some noise on all my pictures taken at ISO 200. I didn't expect to see almost any noise - see the window and the roof flashings ...as the picture was taken on a sunny day and exposure was almost right (lightened the picture up a bit though).It is a 100% crop. Am I too picky? Or could sensor swabbing cause increase in noise? (don't seeany reason why it should but...) Thanks for your comments
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Old Sep 12, 2005, 1:01 AM   #2
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quit pixel peeping and enjoy photography!!!


hehe.. you will find some noise in the shadows with any digital camera..
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Old Sep 13, 2005, 2:54 AM   #3
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Odd type of noise. I doubt it's the camera. If it were CMOS sensor noise, it would be more obvious in the darker tones rather than mid-tones. And I don't see that level of noise in the plant leaves.

Any chance that window is tempered glass?

And swabbing with a liquid cleaner will cause this type of noise due to the microscopic evaporates left behind act as tiny lenses and diffract light hitting the sensor.
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