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Old 13-05-2018, 09:17 PM
ab1963 (Andrew)
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Location: Rangeville, Toowoomba
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takahashi fs-60cb with the CQ module 1.7 x not enough inward focus

I have a takahashi fs-60cb that works well with the 3 ep's i have ,ES 14,20-100 deg ,Swaro 25-50 zoom but when i add the CQ module 1.7 x only the 14 will come to focus the other 2 there isn't enough inward travel and just wanted some guidance as to what would be the best way to go to get the extra inward travel without any messing with tube length,.....
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Old 14-05-2018, 06:36 AM
Kunama
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Andrew,
the FS60Q/CB were never intended to be used with a 2" diagonal..... changing to a Baader Zeiss T2 prism will gain the required back focus but then your clear aperture will limit you to using eyepieces with a 34 field stop or risk vignetting.... only other way would be to change the 127mm OTA tube of the CB to a 105mm one that comes with the CSV version (I bought one from Art Ciampi at TNR)
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Old 14-05-2018, 08:24 AM
ab1963 (Andrew)
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Thanks Matt I will contact Art Ciampi and get the tube for it as it will be worth doing
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