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Thoughts on a camera lens as guide scope
I'm about to have a crack at guiding and have been doing my homework on guide scopes. Initially I'll be imaging with a DSLR and my current lens.
Being an OAP and not flash with cash, the thought crossed my mind that I may be able to use one of several Canon FD lens that I have, including a 70-210mm f4.5 or a 200mm f4 as a guide scope. I'm assuming the optics would be on a par with most guide 'scopes.
I'd be looking at pairing it with a basic guide camera, something like an ASI or QHY.
Anyone done this exercise and could give me some pointers on the adapters etc needed, and importantly, if it's feasible.
Cheers
Kev
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