Donegan Optivisor optical glass lens plates are available separately and can be switched in moments. Simply press out the black keepers with a coin or something similar, switch lens and press the keepers back in. Earlier models had small nuts and bolts.Donegan is the only head mounted magnifier that is available with optical glass prismatic lenses. These lenses cost more but deliver the best clarity and longevity compared to the cheaper lens material used by other manufacturers.
Optivisor Optical Glass Binocular Magnifier 1.5x-3.5x All Magnifications - Findings Outlet
Donegan LP-7 OptiVISOR Lens Plate
Donegan OptiVisor LP7 Replacement Glass Lens Plate #7 for Magnifier 2.75X
Optivisor, Replacement Lens Plate, 1.5x at 20 - Jorgensen Laboratories
A high quality, a precision binocular headband magnifier which permits unrestricted user efficiency while reducing eye strain—leaves both hands free
OptiVISOR Headband Magnifier
Optivisor DA2 - 1.5X — PERRIN
Magnifier Headband Lens 1.5x Magnification DA2 Donegan Optivisor - HH505
Headband Magnifier Visor Double Lens, YTOM Head Mounted Magnifier Jewe
4 Lense Plates of 1.5x, 2x, 2.5x, 3.5x. 1 Headband Magnifying Glass MG81007-B. Interchangeable lens plates. Adjustable buckle head wearing tape. We
1.5/2/2.5/3.5 X Head Band Magnifier Optivisor 4 Lens Eye Loupe Watch Welding
Working distance of 20 inches. 1-1/2x Power. Reduces eyestrain. Glass lens flips up when not in use. Padded forehead for longwearing comfort. Hands-free optical binocular magnifier with a precision ground and polished glass lens is for use on viewing items 20 inches away. Powerful 1-1/2 times magnification makes this great for viewing fine print or small items without eyestrain. Adjustable frame is made of lightweight durable impact-resistant materials.
Optivisor 2x at 10
Replacement OptiVISOR Optical Glass Binocular Magnifiers – uptowntools
Optivisor replacement lenses are a convenient way to get added magnification without having to buy another Optivisor. Simply change out the lens as
OptiVisor Headband Magnifier Replacement Lens Plate 1.5x - 3.5x
Donegan Optical Company LP7 Optivisor Lens Plate #7 – Trainz
If you've eve needed more magnification on your Optivisor, then here is the answer. New add-a-lens kits allow you to add another lens to your headband
OptiVisor Add-A-Lens Kit, Increase Magnification 1.5X to 3.5X
OptiVISOR Head Band Magnifier Visor – ZOIC PalaeoTech Limited