The original Optivisors! For close precision work
Fine prismatic ground lenses. Features an adjustable headband and the lens can be raised and lowered and fits over your regular prescription eyeglasses. We recommend that you consider both magnification and working distance when deciding which Optivisor to purchase
M333-3, Magnification1¾X, Working Distance 14 inches
M333-4, Magnification 2X, Working Distance 10 inches
M333-5, Magnification 2½X, Working Distance 8 inches
M333-7, Magnification 2¾X, Working Distance 6 inches
M333-10, Magnification 3½X, Working Distance 4 inches