Prism Material

7x50 Rangefinder Binoculars w/Compass

The material the prisms in an optic are made from and the coatings they receive obviously effect how well the optics will present an image to your eyes. Like the lenses, the prisms require care in the materials used and coatings applied. Full descriptive text along with how these effect your view can be found in the Basics IV article in the All About Optics section.