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I have a Stellarvue 80mm and a Stellarvue 60mm.
IMHO they are very good finderscopes and they are both very light.
Both are much better than the other correct image illuminated reticle finderscope options, but the Stellarvue 60mm is the better of the two.
Three things to beware of with the 80mm.
1. if you buy the optional 20mm 70 degree eyepiece, it will only just come to focus at the full "in" position of the helical focusser.
2. if you are even moderately shortsighted you will have to wear your glasses to get even the standard 23mm 50 degree eyepiece to come to focus.
3. in extremely cold conditions the alignment thumbscrews in the rings contract enough to loosen the finderscope and it loses alignment. (replacing them with nylon thumb screws fixes this problem)
The 60mm finderscope does not have these (small) limitations.
The Stellarvue 80 is about f3.75 so you get a bigger aperture without loss of any field of view, - like you would by using a small refactor as a finderscope.
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