Poita
23-08-2011, 09:40 AM
Chasing a F10 or similar refractor for a PST modification project.
Achro or APO is fine, anywhere from about F9 - F11 would be okay.
Achro or APO is fine, anywhere from about F9 - F11 would be okay.
View Full Version here: : [NOT REQUIRED] F10 Refractor