That's a good point frequently raised about using this lens. I don't have a 200mm lens to try, I did have a Tamron 200mm FD but I messed up the mount so I'm thinking of getting another one from Ebay.Better than a 200mm lens on a DSLR?
I have seen some of his videos but didn't know he has used that little scope, I'll have a look at his YT page.Hi Laurence
Lovely image that. I've seen the camping astronomer on YouTube use this scope on his dslr and looks a nifty piece of kit