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Old 04-02-2022, 07:20 PM
Startrek (Martin)
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Startrek is offline
 
Join Date: Dec 2017
Location: Sydney and South Coast NSW
Posts: 6,097
Thanks Chris
Appreciate your info
The smaller pixels are what got my attention on the 290MM at 2.9uM
I have a 10” f5 Klaus Helmerich carbon fibre newt on order so I’m confident that a guide scope arrangement will work in lieu of OAG so long as the guide scope is mounted rock solid on the OTA, tubes rings at 480mm apart with Losmandy bar and my imaging / guiding image scale ratio is 1:4 or better. The ratio on my current 8” f5 newt is 1.4 with the ASI120MM-S and my PHD2 guiding on the EQ6-R is now at 0.60 to 0.70 total rms
The 10” f5 will be sitting on a new EQ8-R pro mount in my NexDome Obs down south

Big mid year upgrade !!

The 8” f5 will still be used for the medium to bigger nebula, the 10” for galaxies , globs , and smaller nebs

Cheers
Martin
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