Donegan Optivisor DA-7VIS-DA7
OptiVISOR is a precision binocular headband magnifier which permits unrestricted 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 eyeglasses.
Optivisor is equipped with these unique features:
Optical Glass Prismatic Lenses - Ground and polished to precision optical standards - bevel edged and mounted in 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 sizes - fabricated 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 with orthopedic felt adds to comfort.
The following chart will show the difference in strength and distance.
DA 7 offers 2.75 x magnifications at 6”