|
Hello Margo,
I own a schmidt newtonian so I guess that is a little closer to a newt than a cass is. I have an old olympus SLR camera that I've manage to attach to my scope. For prime focus, which is what it sounds like you are describing, my camera body (no lens) connects to the T-adapter which connects to a T-ring (this should be supplied with your scope), which then connects to the focusing tube of the scope (for my scope, I have to take off the 1.25 inch focusing adapter tube). From memory, and I will get back to you on this if I'm wrong, I usually have to travel a fair bit inwards to focus properly.
We really need more information about your setup to determine what is going wrong but I hope what I've said has helped a little.
|