Roof Prism Binocular Design

It consists of a reflective surface with a metallic mirror vapor steam coating eg silver.

Roof prism binocular design.

More expensive due to higher manufacturing costs. Roof prism design looks as if the light goes straight through. They made the offset zig zag shape of the porro prism design look as old fashioned as propeller driven aircraft. Standard design in use till 1960s.

There is also a difference in image brightness. Increase in popularity after the introduction by zeuss and leitz. Porro prism design has a jog in the light path through each barrel. There are several different roof prism combinations that can be used depending on the design and purpose and desired features of a roof prism binoculars.

Compact lightweight and comfortable to hold. Porro prism binoculars will inherently produce a brighter image than schmidt pechan roof prism binoculars of the same magnification objective size and optical quality because this roof prism design employs silvered surfaces that reduce light transmission by 12 to 15. The roof prism lineup is feature rich including fully multi coated lenses and nitrogen gas filled making it waterproof and fogproof. The most common today is schmid pechan s prism system.

The thompson center line of binoculars offers top level quality at a value packed price point. The gosky roof prism binoculars are another good product. Roof prisms designs create an instrument that is narrower and more compact than porro prisms.