Tony, you can get higher resolution cameras if you want - there are 1024x768 and 1280x1024 versions of these cameras, but if you're just after planetary imaging then all those extra pixels around the edge will go to waste.
Also, more megapixels means more data to transfer, and so the maximum fps is lower. That's one tradeoff that you don't want to make. You can always make the planet larger by using a longer focal length, in practice I haven't seen anyone using a fl long enough that a planet doesn't fit in 640x480, usually it gets too dim before that happens.
Paul, yes I image in 16 bit these days, but like everyone else I have to wait for good conditions before the difference will be evident. I'm hoping to get another go at saturn sometime soon when then weather clears up, and then some serious jovian imaging come feb/march next year.
I think the improvement is clear enough already, looking at the mars images from snake valley and the one imaging run on Saturn last week - both gave results much better than my old fire-i could do, and in turn it was an improvement over my ToUcam...
regards, Bird
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