My attempts to guide with an unmodded toucam were not very successful. My guide scope is rigidly attached to the main scope with rings so I can't aim it in other directions to find a guide star. This seriously reduced any chance of finding a guide star. I assume the modded cam has much greater sensitiviy and gives you more options for guide stars. I now use a QHY guider and can always find a guide star with a ~2 sec exposure no matter where I aim the scope.
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