Roof Prism Porro Prism

The difference between porro prism and roof prism binoculars is in the design and the respective features.

Roof prism porro prism.

Porro prism binoculars were standard until the 1960 s when the zeiss and leitz companies introduced roof prism binoculars whose objective lenses were straight in line with the eyepieces. The prims are in the shape of a right angled triangle and they reflect the light rays through the binoculars so you see your image clearly. Roof prism bino sets are often much more expensive than porro designs of the same magnification. Porro prism vs roof prism binoculars which is better.

So if you re on a tight budget go ahead and look for a porro set sporting bak 4 prisms. Of both types there are good and not so good instruments. Porro prism binoculars have eyepieces that are closer to each other while objective lenses have larger distance. Heavier design zig zag shape not so easy to grip.

Increase in popularity after the introduction by zeuss and leitz. Compact lightweight and comfortable to hold. Roof prism binoculars were compact light and comfortable to hold. Roof prism binoculars have lately become more popular than porro prism binoculars.

Standard design in use till 1960s. It is difficult to say whether porro prism or roof prism binoculars are better. Porro prisms are the more traditional ones and these are seen in older binoculars with a zig zag shape. However porro prism binoculars are great watching birds or other small objects.

Roof prisms are the newer option.