quality at a low price. fast shipping!

This is a good piece of glass (plastic?) for the price and surprisingly clear. I haven't noticed any spherical aberration in the image. It is a little darker than I expected for a 40mm objective but it may just be tinting from the coatings. You have to find the 'sweet spot' to eliminate the chromatic aberration around the edges of dark objects against a bright background (or vice verse) - but at least the 'sweet spot' is there. There is just enough fuzziness that you can't read street signs at 600 yards but you unless you're TRYING to read street signs at 600 yards you'd never notice. This may sound pretty critical but I'm really just nit-picking, I'm actually impressed with this optic. Overall it seems to be good quality, time will tell if it stands up in the field. Surprisingly good for the price and definitely worth it.

Very clear scope, easy to use, but not water proof. Sometimes will not focus at advertised 7 feet distance. Best monocular for the money though.

I have only one good eye, so binoculars don't help me, and this monocular had good power, and was light and easy to use.

I was looking for a light and compact alternative to binoculars for hiking, and most of all I needed something that would clear and well-focussed images. The Barska turned out to be heavy, bulky, and blurry. After checking the performance a few times, I parked it in the glove compartment of my car. Since it doesn't work well, I seldom use it.