We Compare Roof Prism vs Porro Prism Binoculars & Discuss The Differences Between BK7 vs BAK4 Glass. Our Epic Guide Will Help You Choose!
![Roof Prism vs Porro Prism Binoculars? BK7 vs BAK4? [Glass 101]](https://i.pinimg.com/originals/76/2f/bd/762fbdf64d4a0a478a59299870fb5eda.png)
![Roof Prism vs Porro Prism Binoculars? BK7 vs BAK4? [Glass 101]](https://i.pinimg.com/originals/e8/08/5b/e8085bbfb1da384e7fadf46e3cdb511a.png)
