This list includes all talk about CCD and film astrophotography and anything related to it, including where people want to meet for a night of astrophotography in the San Francisco Bay Area.
OK, thanks John. I was curious if the front corrector lens of that scope introduces any chromatic aberrations. I know for my AP160 that there is a measurable
Hi Keith, Ok, maybe I'm being too picky about the diffraction spikes. Does Floyd have a site with images I could look at? -Ray ... attended. I got a ... ST-2K.
Hi Ray, I'm using the 2" Astronomics RGB filters. I've got the RGB filter offsets to zero since I wasn't able to measure any repeatable offset above the seeing
... John, I'm glad to hear that! With my camera I always use the scope with a reducer/corrector and the issues that come with one! I wasn't even thinking about
Ray, a good friend by the name of Floyd Blue had one of the Astronomics versions of the 8" at the last star party I attended. I got a chance to ask him a lot