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Old Jan 15, 2005, 11:24 AM   #1
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Join Date: Nov 2004
Posts: 6


I have a Canon powershot a85 and although it takes great looking pictures in bright light conditions, the noise level in lower light condition is extreme. One day, I took a macroshot, with the object against a white background. I planned not to use a flash, but it went off. Due to the reflective background, the flash was very bright. I wonder if this may have damaged filters or the ccd in the camera. My pictures seem to be more noisy after this happened (increased light sensitivity?) I hope not.

Can anyone help?

Thank you
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Old Jan 15, 2005, 2:04 PM   #2
Join Date: Jun 2003
Location: Savannah, GA (USA)
Posts: 22,369

Nah... That shouldn't have hurt it.

The amount of noise you have in an image is directly releated to the amount of light you have, and the ISO speed. If you leave your camera set for Auto ISO, it's going to increase it in low light, which will mean higher noise -- espcially in underexposed areas.

If you use a lower ISO speed, you'll have less noise. But, lower ISO speeds mean longer exposure times. So, you have to balance the settings.

You may want to try using one of the popular noise removal tools (Neat Image, Noiseware, Noise Ninja).

BTW, there is a free (Community Edition) of Noiseware that you can download from http://www.imagenomic.com

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