Quote:The Atlas uses a Vixen/CG-5 dovetail size saddle, the CGEM and new Skywatcher EQ6 use the wider Losmandy D style saddle (I believe the EQ6 uses a saddle that's actually compatible between both these types of dovetail bar/plates).The Vixen/CG-5 is 1.75" wide but quite thick. The Losmandy D type is wider at 4" but usually thinner. The Losmandy D is stiffer than the Vixen/CG-5 and more suitable for larger otas. The C925 is around the point where the trade off starts to make some sense (length of bar and weight of the ota both come into play).I prefer the more robust D type plate but there are many folks who use a C925 (and even a C11) with the smaller dovetail bar quite successfully.With an Atlas you also have the option of upgrading the saddle to the ADM dual saddle which can handle both types of bars/plates (there are also other choices). I personally thingk this would be a good direction, especially if you are planning to some imaging in the future. The ADM dual saddle for the Atlas, ADM Losmandy D type plate for the 925 and the appropriate radius blocks (used to securely attach the plate to the ota).
George You know you're getting on when the equipment you farmed with is showing up as suburban lawn ornaments.
Orion 8" f3.9 Newtonian, Atlas EQ-G Cooled Canon 1100Da SSAG on 50mm Finder pocketrubbish.com