REPLACEMENT OPTIVISOR LENS PLATE Need a new lens plate for your Optivisor or just want a spare? Here they are. All magnifications are available. Plates come with spare rivets to attach to your visor.
This lenses are glass.
The lens focal lengths are as follows: #2 Lens = focal length of 20" #3 Lens = focal length of 14" #4 Lens = focal length of 10" #5 Lens = focal length of 8" #7 Lens = focal length of 6" #10 Lens = focal length of 4"
