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

DA-10 Donegan OptiVISOR is a hands-free, headband binocular magnifier that has 3.5x optical glass lenses that are ground and polished into prismatic lenses for quality and clarity, and provides a focal length working distance of 4" other lenses are availa
DA-4 Donegan OptiVISOR is a hands-free, headband binocular magnifier that has 3.5x optical glass lenses that are ground and polished into prismatic lenses for quality and clarity, and provides a focal length working distance of 4 other lenses are available in varied magnification which provide specific magnification power (X) at specific focal lengths, or distance from object. The Donegan OptiVISOR is considered by many to be the finest headband magnifier available and has been proudly made in the USA for many decades and is highly durable and widely used in industrial and commercial applications.

MEET DIFFERENT MAGNIFYING: With 4 Replaceable/interconvertible magnification lens, 1.5x at 15 Focal Length/2.0x at 10 Focal Length/2.5x at 7 Focal

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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

Optical polished glass lens Universal fit (head size adjuster) Comfortable and soft head band Can be warn over spectacles Leaves both hands free,

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OptiVISOR - Donegan Optical Company, Inc.

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Donegan DA-10 OptiVisor Headband Magnifier 3.5x Magnification 4 Focal Length 885115188580