|
Just another issue is you will have guide stars with lots of coma because you are looking at the edge of the field before your coma corrector if you have one this can make guiding or auto guiding difficult and the stars even fainter.
The only setup I found to solve this is the Lumicon offaxis ( which is only 25mm thick plus thier coma corrector that fits at the front.
I have these if interested would make a good setup for DSLR as well.
Main advantages are wieght and flexture
Zane
|