Are Porro prism binoculars outdated? Current models show the architecture is still alive
Porro prism binoculars are not obsolete simply because roof-prism models now occupy more of the premium and compact shelf space. Current manufacturer lineups still use the architecture in newly developed general-purpose models, waterproof designs, and specialized large binoculars. The practical question is not whether the prism layout looks old, but whether the finished binocular fits