Prisms in binoculars flip and reverse the virtual image so that you see a true image. There are different types of prisms used in binoculars. One design uses Porro Prisms, the other Roof Prisms. Each type has its own advantages and disadvantages, features, and characteristics. And what are the prisms for anyway? But what is … Read more
Every time a beam of light travels from one medium into another the beam of light is bent (refracted). An observation you have probably wondered about as a child when putting a straw in a glass of water. When light is traveling through an optical instrument the optical glass of binoculars reflects, refract, and absorbs … Read more
If you are new to binoculars and how binoculars work, you need to learn what the numbers stand for, what the different features are, and how all this sets the different binoculars apart. Here are the basics about binoculars explained and how are binoculars rated. When you need to choose a particular pair of binoculars, … Read more