Donegan DA-5 OptiVisor Headband Magnifier, 2.5x Magnification, 8" Focal Length Obviously you think why I should buy this product, what's in it worth for me? Yes we can answer it for you, Here we summarize the information to convince you that this product deserve you to buy because it is necesity for you.
- Binocular headband magnifier provides hands-free magnification and viewing for a variety of applications such as jewelry-making, watch-making, needlework, artwork, electronic inspection, book-reading, print inspection, and stamp-collecting
- Available in multiple dioptric strengths (indicated by the model number) that provide a specific magnification power (X), depending on the distance from the object
- A dioptric number and a magnification number are not the same thing. Diopter strength represents a specific magnification power (X). For example, a 5-diopter provides 2.5X magnification (at a distance of 8")
- Optical glass lenses are ground and polished into prismatic lenses for quality and clarity
- Can be worn over prescription or safety eyeglasses
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. This magnifier enhances the size and resolution of an object or image, and is commonly used for a variety of applications such as jewel
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