It's generally a given that for the same dollar spent you get better optical quality in a porro over a roof.
The downside seems to be that because of their design, porros are not as durable as roofs especially in holding their collimnation. This is true because roofs focus internally and have a single hinge.
I thought I saw somewhere that manufacturers had found a way to focus porros internally and to have them hold their collimnation with a single hinge.
Would anyone please comment.
The downside seems to be that because of their design, porros are not as durable as roofs especially in holding their collimnation. This is true because roofs focus internally and have a single hinge.
I thought I saw somewhere that manufacturers had found a way to focus porros internally and to have them hold their collimnation with a single hinge.
Would anyone please comment.