Roof Prism Vs Bak 4

You gave them an image quality of 7.

Roof prism vs bak 4.

Actually porro prism in bak 4 are a superior design to roof prisms at the same price point. Bak 4 quality is a lot better. Bk7 vs bak4 and porro prism vs roof prism. Roof prism vs porro prism binoculars.

Refraction and partial reflection. However now my wife wants her own binoculars. One highlight is they include bak 4 porro prisms which gives them a unique design and shape. Bk 7 prisms are also used usually in lower priced binoculars.

Binoculars with bk 7 prisms can be judged by a squared off side to the general roundness of the image. Plus they come with turn and slide. They are easy to grip with their durable rubber armored coating. In the comparisons below i am making the assumption that the quality of glass used to make the prism are of equal quality.

They are fully multi coated phase coated bak 4 prisms. They ll provide just as vibrant an image as a corresponding roof set at a fraction of the cost. But in the optics world that preference will certainly help you in the buying process. And they re much better for overall general use.

So if you re on a tight budget go ahead and look for a porro set sporting bak 4 prisms. These are satisfactory but inferior to the bak 4 prisms. Roofs use expensive coatings design to match the best porros optical advantage. Roof prism bino sets are often much more expensive than porro designs of the same magnification.

Because the objective lenses are often spaced wider than roof prisms they can also sometimes produce a slightly better stereoscopic image. However just like roof prisms not all porro prisms are created equal and prisms made form bak 4 glass are usually better than those made from bk7 glass. For 140 i think they are great. If you re a guy or gal who has a type you might be perceived as being shallow.

Porros are far easier to build and have an advantage over roofs in optical clarity. This doesn t mean binoculars made of bk 7 prisms are not usable or produce a bad image.