D derquhart Active Member Messages 290 Nov 19, 2006 #1 So im not to familiar with all of the technical aspects of Binos...what is the difference in roof and porro prism?
So im not to familiar with all of the technical aspects of Binos...what is the difference in roof and porro prism?
F Foreman4x4 Very Active Member Messages 2,128 Nov 19, 2006 #2 http://www.binoculars101.com/bin-design-design.html
