Porro prisms are the more traditional ones and these are seen in older binoculars with a zig zag shape.
Porro prism binoculars vs roof.
Though it is more cumbersome than roof prism binocular its less complex.
Roof prism binoculars were compact light and comfortable to hold.
The light path refracts more light thereby allowing a brighter image and better optics to be visible.
Roof prisms are the newer option.
Roof prism binoculars have lately become more popular than porro prism binoculars.
The difference between porro prism and roof prism binoculars is in the design and the respective features.
Roof prism design looks as if the light goes straight through.
That s why usually porro binoculars produce brighter image.
In roof binoculars prisms are arranged in a straight line which makes roof binoculars more compact and lightweight compared to porro binoculars.
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.
Porro prism design has a jog in the light path through each barrel.
Prism in roof binoculars doesn t reflect 100 of the light that enters its lenses.
They ll provide just as vibrant an image as a corresponding roof set at a fraction of the cost.
Roof prism bino sets are often much more expensive than porro designs of the same magnification.
They made the offset zig zag shape of the porro prism design look as old fashioned as propeller driven aircraft.