Not sure about your question but when Prime Focus is mentioned for astrophotography, it usually means that the Telescope is mounted on the Camera much like a normal lens is. Eyepience projection means that the camera is mounted but focusing is through the eyepiece. I'll take a couple of photos for you to see as I'm gonna do some backyard astro-photography later tonight. Will post the pics in the album under "You and your telescopes" section.blurblock wrote:Just a question, you are doing prime focusing with EOS 10D .... what lens (the make and diameter) you use to do the prime focusing? Most of my lens are 77mm......
DSLRs and Astrophotography (Newbie here)
I can only identify Orion!