|
Dobs are far from optimal for planetary visual observing ... secondary too big, not enough focal length, the SW mounts are too stiff, and at high power tracking is not easy especially with a stiff mount.
Long focal length (and f/ratio) is required... get a 150 or 180mm mak or 200mm SCT on a GOTO mount - though either will cost more than the dob.
A 150mm mak on a SW All-View mount would do quite nicely on a modest budget, and would eat the 100mm refractor on anything.
Last edited by Wavytone; 17-05-2018 at 09:34 PM.
|