DA-4 New

The DA-4 optivisor is a 4 diopter binocular headband magnifier.

Works best at @ 25cm,[10"]

• Binocular design reduces eyestrain and allows three-dimensional vision.
• Optical Glass Prismatic Lenses Ground and polished to precision optical standards.
• It Tilts - Adjustable pivots allow the visor to be tilted out of the way when not needed
• Made completely in the USA
• Adjustable headband - conforms to fit all head sizes
• Genuine leather comfort band padded with orthopedic felt adds comfort all day long
• Work hands free!
• The hood keeps light from reflecting off the back of the lenses, thus increasing the contrast ratio. (Contrast ratio is the difference between the brightest and darkest point in an image.) Better contrast ratio lets you see details you would miss otherwise.