This guide resolves a heated debate in the binocular community. Learn the differences between roof and Porro prism binoculars to inform your next purchase.
If you enjoy spending time outdoors, whether hiking, hunting, birding, or sailing, you know the importance of keeping your binoculars handy. Using them is second nature, and you likely keep them strapped to your body or have them ready to go at a moment’s notice. They’re so commonplace in the sporting optics world that you might not even marvel at the scientific advancement which contributed to the binoculars hanging from your neck.
Binoculars are an incredible feat of engineering, and they’ve come a long way since the days of men of the renaissance like Galileo. We now have a firm understanding of how light and prisms work so that the world of optics is no longer a mystery. These advancements have also led to two main types of prism designs in the binocular world, the roof prism and the Perger-Porro prism.
As with any community, whenever there is an either-or product, you’ll find that debates on Internet blogs abound. However, it isn’t quite fitting to pit roof prisms against Porro prisms, as each has its advantages and disadvantages. Instead, it’s about having a conversation about which prism is best to meet your outdoor viewing needs.
Read this guide for crucial information on how binoculars work and why we can squash the roof prism versus Porro prism binoculars debate.