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Originally Posted by [1ponders]
Focusing is always an issue so a Bahtinov mask will help and with SCT you have a moving primary mirror for focusing so think down the future of a zero shift focuser |
I don't quite understand this. I have a Celestron motor focuser on my C8 and it solves the problem of scope vibration (and wearing out your fingertips) when you focus. It doesn't address the mirror flop.
Would I still have the flop with a Crayford? eg JMI EV1cm
Is there any way to lock the mirror after a rough focus and do the final with a Crayford? Depending on what is on the visual back the focal position moves more than I think a Crayford can handle.
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Welcome to the money pit.
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It keeps getting deeper.