I've only the comparison of the MM4-60 with the DiaScope, but I think the v2 is a very good performing zoom, with a tight 15x (20x leads to the same field, so I use 15x only for the bigger exit pupil if needed), and a wide 45x. Obvious I'm an opticron fan-boy, but keep in mind that whilst scanning the landscape, there is a remarkable globe-effect
, which isn't (or veeery less) in the DiaScope w/20-75x. The perception of the globe is very individual, and I haven't see it in scopes before. If you're looking 'normal' to your targets with little movements, you cannot see this behaviour. The MM4 is very rugged, look at my 'experience'