Quote:
Originally Posted by OICURMT
I'm sorta tired of listening to the standard "internet myths" of the disadvantages of fork mounted scopes... if they are so bad, then why are most large scale scopes (i.e. metres in diameter) mounted that way?
OIC!
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Most large scope are mounted this way because EQ mounts are impractical at that size. The 200" Hale at Palomar is mounted on a horseshoe mount which is a variant of an EQ, as is the AAT at Siding Springs. Modern big scopes (Keck, Gemini etc) are mounted alt az and as I understand it use something similar to a field rotator to compensate.
Malcolm