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Originally Posted by alistairsam
That's truly impressive Jo.
Amazing worksmanship. What mount will you be using it on.
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Thanks Alistair, it will be on a Ioptron I45.
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I'd suggest a slim OAG rather than a guidescope. saves so much hassle with having a separate guide scope and differential flexure and is not expensive either. but then you do need a sensitive guidecam.
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As this scope will probably not be used for any serious AP I'll be going the guide scope (easier for me to make)
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check out the Long perng focuser from andrews. its low profile and is pretty good.
the lower the profile of the focuser, the better it is for imaging as you then get sufficient back focus, you can keep the secondary small, and less vingetting although with an F6, that shouldn't be as much an issue as with an F4.
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Yes they look nice, would it be a bit of an overkill for the guide scope though
(already got a 2" 10:1 Crayford for the newt)
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Have you thought of re-inforcing the focuser area? I know the wood would be strong enough but its a thought.
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No I haven't thought of that, it's a good idea, on the next coat of resin I'll stick some fiberglass on the inside of the tube in that area.
Thanks again
Jo