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Hi John >>>Somehow I thought a bigger sensor would send better and more detailed images that the guide ware would use for improved guiding. okay i see what you're?saying there. Larger sensor size isn't important and doesn't really buy you anything for 99% of guiding.? once a guidestar is selected, typically the subframes are only about 15pixels wide.? what is most beneficial for a guide camera is a very sensitive chip. It used to be that smaller pixels also helped, but guiding software has gotten so good that it can guide to fractions of a pixel, so it becomes less important. A large chip camera has the downside of longer download?times, so at full size it would end up being detrimental?to you, and you'd probably end up using use a small subframe anyways Also visually seeing guidestars in PHD should not be important to you either. the auto guidestar selection should be used precisely because it does a better job of evaluating stars, including ones you can't even see.?? the one exception to a large sensor helping for guiding is using an ONAG, and even there you'd bin it 3 or 4. ONAG is a fairly exotic piece of equipment.? hth Brian On Fri, Dec 11, 2020 at 9:41 PM John Kmetz <jjkmetz54@...> wrote:
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