Does anyone have a resource of PAL markings? I have been using one from thevisioncouncil but quite often I run into lenses I have never seen before. ...
I was afraid I might miss it as 10 minutes before this was snapped, the fog was so heavy, I couldn't even see the river from the turn out (only about...
Just to confuse the issue a little more it is Silver Halide in photochromic glass. This was a offshoot of a defense dept project to instantly darken...
Yes. SOP for monocular vision in my book. Here's a nice visual representation of the scotoma, and how the vision is in, then out due to the scotoma,...
When the grays or black are showing red, change them. For other colors, change them when the colors are no longer vibrant or if the lenses are taking...