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Optivisor DA-5 Headband Magnifier Visor, 2.5x, 8″ Focal Length, Donegan Optical

$59.99 $39.99

DA-5 2.5x OptiVISOR® by Donegan Optical with 2.5x glass prismatic lens plate with a 8″ inch focal length/working distance. The Optivisor is a high quality Headband Magnifier for professional and hobbyists that is made in the USA and has been popular for over 30 years, the headband fully adjustable to fit any size quickly and easily and is ideal for Watchmakers, jewelers, tool & die makers, engravers, stamp and coin collectors, needlepoint, physicians, dentists, pharmacies and hospitals. Headband is adjustable +/- 60% either way. The 2x lens gives you an versatile and comfortable working distance / focal length of 10″ is ideal for most applications where you want to retain a comfortable working distance and have magnification. Can be worn over glasses. Other lens magnifications available for purchase, see the 1.5x, 2.0x,3.5x lenses. Different magnifications have different working distances/focal lengths, the more powerful the lens the shorter the focal length, the maximum magnification that can be seen with both eyes is 3.5x, this is because any closer and you the focal length would be so short you would start going cross eyed.

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DA-5 2.5x OptiVISOR® by Donegan Optical with 2.5x glass prismatic lens plate with a 8″ inch focal length/working distance. Optivisor is high quality Headband Magnifier for professional and hobbyists that is made in the USA and has been popular for over 30 years, the headband fully adjustable to fit any size quickly and easily and is ideal for Watchmakers, jewelers, tool & die makers, engravers, stamp and coin collectors, needlepoint, physicians, dentists, pharmacies and hospitals. Headband is adjustable +/- 60% either way.

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