DA-10 OptiVISOR 10 Dioptre

OptiVISOR 10 Dioptre or 3.5 power. Works best at 10cm,[4]

OptiVisor LX-4 Binocular Magnifier - 2X at 10 inches —

Optivisor Light

Donegan Optivisor Al Headband Magnification Set : Target

OptiVisor LX-4 Binocular Magnifier - 2X at 10 inches —

Handsfree Magnifiers Archives - Donegan Optical Company, Inc.

Handsfree Magnifiers Archives - Donegan Optical Company, Inc.

DONEGAN OPTICAL-OptiVISOR LX Binocular Headband with Optical Grade Lensplate #7-Magnifies 2-3/4x Power at 6 Inch. Perfect for anyone whose profession or craft requires close accurate work with both hands free! The adjustable side pivots allow the visor to tilt at your fingertips and a dial adjustment headband that conforms to comfortably fit all head sizes. The LX has a genuine leather padded comfort band with orthopedic felt for extra comfort.

Headband Magnifier Optivisor

Vintage Opti Visor Optical Glass Binocular Magnifier Original Box & Instructions

Donegan LP-5 Replacement Lens Plate for OptiVISOR, 2.25x Magnification, 8 Focal Length

Donegan Optivisor DA-10 Headband Magnifier Visor with 3.5x and 4 Inch Focal Length

A2UD Head-mounted Welding Repair Tools Magnifier Head Band Optivisor Eye Loupe 4 Lens - AliExpress

Quasar LED Light Attachment for Optivisor Magnifying Visors