Good evening all,
I am in the process of getting my equipment together for some DSO imaging.
Currently have ST120 with Crayford style dual speed focuser, EAF, zwo 224 mc (i think, colour camera) asi120mm guide camera with 120mm zwo guide scope. eq5 goto pro controlled by stellarium, sharpcap pro, eqmod and ascom. I am using a startech starlink from the mount to the computer.
I think I have everything covered to start imaging, apart from experience and knowledge (but trying).
I am struggling to find focus using the 224 as the main camera. Is there a calculation I can use, or does anyone have an idea as to the length I need the draw tube to be at to get focus on objects? Will I need extenders?
The reason I ask is that I had a little play while setting it all up (on one of the rare cloudless nights in my area), and the drawtube was at its maximum and still did not seem to be in focus (was aiming at the moon).
I hope these questions make sense, but happy to try and clarify if that would help.
Rob