This magnifier has a great level of zoom, unmatched by its rivals. The mount it comes with is about as useless as it gets and doesn't instill much confidence in the product, but i paired it with a flip to side mount and now everything is perfect. Just be warned, the eye relief is short at about 2 to 2.5 inches.
Pros: Low price, great zoom.
Cons: short eye relief
This review was written in the old system and had content requirements that are different than reviews written today.