an Astro-Physics 600EGTO for several years I knew to expect quality from
a new 900GTO. However, a few things surprised me. The 900GTO was much
lighter and easier to set up than I expected.
Astro-Physics has done a superb job of removing unnecessary weight from
the mount while retaining its strength. The "dovetail" mechanism
for connecting the RA and Dec units is surprisingly simple to set up --
no tools required. The four knob-screws for attaching the RA unit to the
pier make polar alignment easier.
I was also surprised by how stable the 900GTO is with the Astro-Physics
10" Maksutov-Cassegrain. This OTA demands much from a mount because
of its long focal length and considerable weight (for its size). I am
very pleased with this mount."
by Robin Casady