SV135 7mm to 21mm 1.25inch Zoom Eyepiece

I did some quick tests of this, the 8-24, and some other eyepieces. This one was the biggest surprise. Construction and optical quality were way above my expectation. Not only that, it is also light and relatively small. The 8-24 is a big, heavy piece of equipment, but this 7-21 seemed to perform better optically, especially at the zoom extremes. The only caveat is the narrow field of view, but for wide views, I would say it's better to get a single focal length, wide angle eyepiece, and to use the zoom for everything else.

I hope SVbony will not mind me writing this review. This eyepiece was one of my first lenses, as I was still fresh into astronomy and its still one of my favorites to this day!! I originally bought this eyepiece because I didn't know which size of lens to buy and by purchasing this zoom lens you get 5 different rates of magnification ranging from 21mm to 7mm so its like have 5 eyepieces in 1. Its now my GoTo lens when it comes to just picking up a lens and go. I use it at star parties or when I cant be bothered to carry a large big bag of telescope lens. You can see my video on Youtube my chanle is Mans Hobbs & interests