I'm just looking around for a guide scope and I see an Orion Mini 50mm set up. I'd be using it on an 8" SCT. The text for the guide scope says the following:
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Compact mini guide scope designed for use with astrophotography telescopes up to 1500mm focal length
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Can anyone tell me what the FL of the main scope has to do with the ability of the guide scope to work correctly?
The 8" SCT has a 2032mm FL. How would that determine the usefulness of the guidescope?
