Gain vs Color. This shows why the gain setting should be kept as low as possible even at the expense of a longer exposure. For most planets this is not a problem because they are so bright. Color saturation will be best with low gain settings.
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| Webcam frames per second vs. image quality. Kyle Edwards pointed out that the frame rate of WebCams has a direct effect on image quality. According to my test 5 fps to 10 fps max are the best rates to use. Anything higher causes the image to be over compressed.
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| Webcam Gain and Supersampling. Here is a test I conducted to see how much re-sampling an image before stacking helps resolution. I also tested using gain vs. exposure length to obtain proper exposure. A longer exposure seems to provide a better color balance and less noise.
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Since several folks seemed to see little difference between using an IR filter and no filter when actually imaging planets I decided to do another test. This time I corrected the white balance and exposure/ gain with and without the filter. Even though I was able to fix the white balance without the filter, the color saturation was definately less.
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| IR-Filter-Comparison:
I have done some reading on the net as to using IR filters with ToUCams. I think one of the reasons that I have felt that my Coolpix takes better planetary images than the WebCam is due to the color shift caused by IR polluting the color channels. This comparison shows why this happens.
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