Bausch and Lomb has an excellent reputation. It’s a good magnifier image without distortion.
This hand lens has:
- three separate glass lens
- a swing away nickel-plated case
- the focal distance is 0.8″
- lens diameter is 12.5 mm
- dioper of this 56D
20x magnifying hand lens also available
Description

I wrote a post on Choosing a Hand Lens for Nature Study.