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I doubt that the largest field stop I have is greater than 38mm, but I'll have to check.
A good Crayford may be on the cards one day, but at the moment I'm aiming for an astro video cam (Mallincam)as I have been interested in this for some time now.
Coming in at a close second is spectroscopy, but it's got a lot of brick walls to climb to get anything useful that doesn't cost a fortune.
Rob.
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