Kep in mind you will see a lot less detail going down from 10" to 5", I have a 5" mak which is great but you don't gather that much light.
With the long focal length of the Mak a focal reducer would be a must for photography, and tracking becomes more critical as you increase the focal length, also the exposrure time goes up.
Easier photography is with a refractor, maybe you should consider holding onto the dob for visual & buy an ed80
|