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Old 06-04-2012, 08:26 PM
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tlgerdes (Trevor)
Love the moonless nights!

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Join Date: Mar 2009
Location: Sydney
Posts: 2,285
We played around with using a 70-200mm lens as a guide scope with an autoguider, the problem was in-focus, we couldnt get the CCD chip close enough to get a good focus. I think you will find the same with an eyepiece.

Think about where the CCD plane is in comparison to the lens when fitted to a camera, this is the distance your eyepiece lens need to be as well.
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