Donegan OptiVISOR Magnifier #3 DA-3 Glass Lens

OptiVISOR is a precision binocular headband magnifier which permits unrestricted user efficiency while reducing eye strainΓÇöleaves 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 eyeglasses. Optical glass prismatic lenses: Ground and polished to precision optical standardsΓÇöbevel edged and mounted in an interchangeable plastic frame It tilts: Adjustable pivots allow the visor to be tilted out of the way when not needed and at your fingertips when you need magnification Adjustable headband: Conforms to fit all head sizesΓÇöfabricated from a special blend lightweight material. Comfortable when worn for long periods of time. High impact visor: Provides a tough, durable, always-new appearance Genuine leather comfort band: Padded orthopedic felt adds to comfort OptiVISOR Specs MFG No. Focal Length Magnification DA-2 20" 1.5 times DA-3 14" 1.75 times DA-4 10" 2 times DA-5 8" 2.5 times DA-7 6" 2.75 times DA-10 4" 3.5 times