OptiVISOR is a precision binocular headband magnifier which permits unrestricted user efficiency while reducing eye strain—leaves both hands free and allows three dimensional vision. Used by anyone whose profession or craft requires close accurate work. Can be worn over prescription or safety...
It was only last year that I ventured into repairing cameras. In this respect, my experiences are limited.
I bought this magnifying glass for this work. What I really appreciate is the optimal lighting, which is very bright and always comes from the right direction:
I've had a pair of magnifiers for years. Got them for doing my pen-and-inks and b-printing, but they are indispensable for working on cameras, watches, taking tiny splinters out of body parts, etc.