I'd like to take advantage of the sale before x-mas and I cannot decide between these two. Is the only difference eye relief/field of view? I am mostly concerned with sharp flat fields and bright/high contrast images, I am leaning towards the Radian. I like mostly bright Messier Objects and planets, as I live in the City. I have a 4"f/10 refractor and an 8" f6 reflector, any help would be appreciated!
Sean Cunneen
ATM
8" f12 D&G Refractor among others