It has a one-year limited warranty.ĭiopter (D) is a technical term for the measurement of the light curvature and thickness of a lens. The magnifier weighs 0.67 lbs., and comes housed in a protective shell and carrying case. Spring-loaded pivot screws hold the headband in a raised or a forward-facing position. A durable, plastic visor tips up above the forehead when not in use. It can be worn over prescription or safety eyeglasses. An adjustable headband with padded leather comfort band conforms to a variety of head sizes and provides comfort for hours of continuous use.
The OptiVISOR magnifier features replaceable binocular lenses that have beveled edges that are mounted in an interchangeable plastic frame. This magnifier enhances the size and resolution of an object or image, and is commonly used for a variety of applications such as jewelry-making, watch- making, needlework, artwork, electronic inspection, book-reading, print inspection, and stamp-collecting. The Donegan OptiVISOR is a hands-free, headband binocular magnifier that has optical glass lenses that are ground and polished into prismatic lenses for quality and clarity, and is available in multiple dioptric strengths (indicated by the number in the model) which provide specific magnification power (X) at specific focal lengths, or distance from object.
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