Optivisor 7: Focal Length 6" - Magnification: 2,75 times
The Optivisor Headband Magnifier meets the demands of professionals in science labs, craft studios, production lines and engineering workshops for a hardy system of interchangeable lenses for close-up, hands-free work. It comprises a lightweight, adjustable headband and a tough, pull-down plastic visor, with prismatic optical glass lenses mounted on the front to magnify near-view components, objects and text . The lenses are mounted in a plastic frame and can easily be removed and replaced with other lenses offering different magnifications. The Optivisor can be worn over normal prescription or safety eyeglasses and pivots up and out of the way when not required, enabling the user to quickly alternate between normal vision and extra magnification.