Achromatic, distortion free optics of this magnifier is superior to the cheaper versions I've used in past. Not as bright and depth of field is less than my Zeiss magnifier, but is smaller and fits unnoticed in a pocket. Also the B&L is less than 1/4 the price of the Zeiss. Overall an excellent magnifier.
Pros: Good optics
This review was written in the old system and had content requirements that are different than reviews written today.