8' is plenty big, my experience with big long refractors is one of "shaky images", the f7 refractors Roland makes are well mounted as well. Many of the "spotlight prints" are photographed using his refractors. Big refractors are only practical when mounted in an observatory like the Andy out at SPOC. I don't think Roland has ever made a 12" lens triplet. Maybe I'm wrong.
I own 2 APO's, but my largest is 100mm. Huge refractors are not the most portable scopes you will encounter.
On Tue, Mar 23, 2010 at 12:11 PM, <erikhansen@thebluezone.net> wrote:
Hard to compete with Astrophysics when it comes to refractor lenses.
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