Optional attachment adds 2.5 power, for close inspection work. The Optiloupe easily attaches to an Optivisor lens plate as shown in image. Optivisor
DA-3 Donegan OptiVISOR is a hands-free, headband binocular magnifier that has 1.75x optical glass lenses that are ground and polished into prismatic
Donegan Optivisor DA-3 Headband Magnifier Visor, 1.75x, 14 Inch Focal Length
GREAT LAKES IPM WEBSTORE: DONEGAN OPTIVISOR Great Lakes IPM
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RS Pro Magnifier, 2.5x x Magnification, 2901539
OptiVISOR® Headband Magnifiers 1.5x -3.5x
Magnification Visor with LED light - Jantz Supply
Optional attachment adds 2.5 power, for close inspection work. The Optiloupe easily attaches to an Optivisor lens plate as shown in image. Optivisor
Optiloupe for OptiVisor Headband Magnifier
Magnification – A to Z Jewelry Tools & Supplies
1.75x Optivisor Lens Plate
OptiVISOR® DA - Precision Glass Binocular Magnifiers and Accessories