Hi
I have been imaging for some time using a Meade 80mm f6 APO refractor and by mostly trial and error I have now a pretty good idea of what image exposures and stacking quantities I need to produce reasonable composites. I have now bought a GSO Ritchey Chretien reflector 200mm f8.
Question 1: Considering the optics of the situation is there a simple way I could translate my 80mm refractor exposure and stacking figures to suit the RC (and thus save me the imaging time of experimentation)?
Question 2: Would the different in transmission loss of the light through the above two telescopes be a significant factor?
Detailed stats of the scopes are:
Meade 80mm ED APO f6 three element refractor.
Ritchey Chretien GSO 200mm f8 reflector with 99% reflectivity dielectric
mirror coatings. Also because of the large secondary mirror obstruction with this scope the effective equivalent mirror reflection diameter is 176mm.
Cheers Peter
