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Originally Posted by davidpretorius
i also remember at the november star camp, ken said he hardly ever used his 6.5mm eyepiece in his 12" which gives him 230x. We chucked it in his scope anyway and due to the major factors ie mirror the same temp as ambient and the seeing was 9/10, then out popped the cassini division and 5 or 6 moons of saturn from memory.
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That's right Davo!
I hardly ever use my 6.5mm EP coz it just ain't worth it. You need near perfect conditions for it!!! The moment Davo is talking about was at the Camp and Saturn was as clear as a Hubble photograph and it was only about one inch above the horizon!!!! That is exceptional seeing!
Normally the 6.5mm in an f5 (the GS 12" is an f5) is pretty useless and you are pushing the limit at around 9mm. It is not the scope, it's the seeing and that f5's just don't like very high mag. Thay are a Deep Space scope and therefore love 10mm - 32mm and especially widefield. The 12" comes into it's best as a Galaxy Hunter, not so much a Planet Snooper. But that suits me fine as I am a Galaxy & DSO freak.