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Old 22-01-2015, 11:35 AM
ariefm71 (Arief)
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ariefm71 is offline
 
Join Date: Nov 2014
Location: Perth
Posts: 132
Oversized tube for 10" Newtonian OTA

Hi,

I'm getting a 10" f/6 primary mirror and need some advice on how to quickly get/build a structure around it.

One option is to use the GSO 12" f/5 tube and modify the mirror cell for the 10" mirror. Can't use their 10" tube as they're f/5 instead of f/6.

Did some calculations with Newt and this seems to be a viable option (attached pics).

Other than the extra bulk, what are the disadvantages of going this route?

Thanks,
Arief
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