The Aplanatic lens, a proprietary design of ESCHENBACH, offers the best optics available in magnifiers. The Aplanatic lens is made of a high-quality PXM® lightweight lens system consisting of two Plano-convex lenses that give a clearly defined, distortion-free image. Because of the edge-to-edge distortion free optics, this lens design is especially useful for patients with Macular Degeneration. 

Features: 
* Magnification: 2.8X
* Diopter: 7.4D 
* Lens Size: 3 Inches (75 mm)
* Lens Type: Aplanatic 
* Working Distance: 5.3 Inches
* Case Material: Leather 
* Mount: High Grade Plastic 
* Lens Material: PXM with Cera-Tec Coating 
* Weight 3.2 oz 

Manufacturer: Eschenbach
Origin: Germany
Model: 2668-75