BINOCULAR LOUPES OPTIVISOR No. 7 (2.75x)

BINOCULAR MAGNIFIERS OPTIVISOR No.7 (2.75X) OptiVISOR manufactures efficient precision binocular magnifiers, reducing eyestrain, leaving both hands free and allowing three-dimensional vision. These magnifiers come equipped with 2.75x lenses. Features: · Prismatic lenses of optical glass: ground and polished according to precision optical standards, with beveled edges and mounted in an interchangeable plastic frame · Tilts: the adjustable pivots allow the visor to tilt when the magnifiers are not needed. · Adjustable headband: to fit all sizes, made of a lightweight and comfortable material for use over prolonged periods of time. · High-impact visor: provides a resistant and durable appearance. · Focal length of 152 mm