Donegan OptiVISOR LX Binocular Magnifier-Lensplate #4 Magnifies 2X At 10" Focal Length Review

Donegan OptiVISOR LX Binocular Magnifier-Lensplate #4 Magnifies 2X At 10" Focal Length Reviewhttp://tinyurl.com/n4z5h4f Donegan OptiVISOR LX Binocular Magnifier-Lensplate #4 Magnifies 2X At 10" Focal Length Please note: number on the lens designates the diopter, not the magnificationMagnifies 2X at 10" focal lengthMatched set of Lenses prismatically ground and polished to precise optical standardsLens conveniently flips up and away when not in useErgometric soft genuine leather headband backed with wool felt designed from natural material to help wick moisture awaySpring loaded pivot screws designed to hold headband secure while in use with locking dial adjustable headband