[QUOTE=gregbradley]Certainly for 120-130mm refractors an AP Mach 1 would be awesome.
Roland though would be the first to tell you (I have seen him advise others) that the Mach 1 would not be suitable for much larger than that.
But then he is probably quite conservative.
Actually to quote AP
"Ideal instruments include: Astro-Physics and similar fast refractors up to our 160 mm f7.5 StarFire EDF, 8-11" SCTs, 6-8" Maks or any scopes of a similar size." for the Mach1 and these are conservative - its a bigger mount
than most realise.
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