Porro prism binoculars have lost much of their market share to the sleeker, sexier roof prism binocular over the years, at least in the mid and high priced portions of the
binocular market, but one place porro prism binoculars continue to dominate is in the budget binocular market. Why? Two reasons. First,
porro prism binoculars are less expensive to make to the same optical standards as a roof prism binocular. Second, porro prism binocular are more optically efficient than roof prism binoculars. The result? You get
more for your binocular dollar when spending under $200 with a porro prism binocular. A porro prism binocular, such as the
Nikon Action Extreme or
Bushnell Legend may be a bit bulkier than a roof prism at the same price, but optics will be better.