Roof And Porro Binoculars

How binoculars work part 2.

Roof and porro binoculars.

If you see a pair of straight tube binoculars there s a good chance you re looking at a set equipped with roof prisms. Binocular power and light part 5. 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. These are the more modern of the two types of binoculars.

Porro prism binoculars however do not need these coatings to reflect the same amount of light and so can match the better quality roof prisms at a lower cost. In fact the distance between eyepieces is almost the same and you can see it on the screenshot below. Roof prisms are the newer option. Porro prism binoculars were standard until the 1960 s when the zeiss.

They re more compact and streamlined lighter weight and much easier to carry around than the bulky porro style binos. Choosing a binocular part 9. The future of birding optics roof prisms vs porro prisms. Porro prisms are the more traditional ones and these are seen in older binoculars with a zig zag shape.

Binocular coatings part 4. Comparing binoculars part 8. Therefore at the cheaper end of the market they can often outperform a roof prism of the same price because to save money the will use less layers or lower quality mirror coatings. Porro prisms part 3.

Its better to choose a binocular equipped with any of the prism types. Field of view part 6. There is an optical illusion here. Eye relief and birding eyeglasses part 7.

If you have decided to go on a hiking trekking birdwatching trip with without family.