$49.95
Optical precision comes from bonding together a double convex element and two concave elements of different types of glass. The transparent body allows illumination to fall on magnified area; body is threaded so you can focus the lens. Lens slides are coated black to block glare. Optional measuring scales (sold separately) screw onto the bottom of the lens.
Features:
* Magnification: 10X
* Focal length: 1 Inches(25 mm)
* Viewing area: .62 Inches(16 mm)
* Protective case included
Manufacturer: Bausch & Lomb
Model: 81-34-33
