Manufacturer: Donegan Optical
Brand: Donegan Optical
Model: Vantage Magnifiers
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The Donegan flashlight magnifier is a hand-held magnifier with a round lens, a rigid body for gripping, a switch to activate LED lighting, and is available in a variety of lens sizes, and multiple magnification powers (X). This magnifier enhances the size and resolution of an object or image, and is commonly used for a variety of applications such as dermatology, fly-tying, jewelry-making, watch-making, needlework, electronic inspection, book-reading, print inspection, and stamp-collecting. This magnifier features a flashlight-shaped body with ridges for gripping. A switch activates lighting. It has a round, optical-grade lens (available in a variety of sizes) that has been ground and polished into a prismatic lens, and is available in multiple magnification powers (X). A scale is located at bottom for accurate measuring. The magnifier weighs 0.257 oz. Model V-980-5 works with two D batteries (not included), and Model V-9801-10 works with two C batteries (not included). The unit has a one-year limited warranty. Magnifiers are devices used to enlarge the visual appearance of an object or image. Magnifiers come in a variety of styles such as hand-held, headband, standing, clip-on, eye loupe, and those that hang in a necklace form, or fit in a trouser pocket. Magnifiers are commonly made of plastic or glass. They can have one or more lenses with varying magnification abilities, and can have a binocular configuration with a single lens, or two separate lenses. They are sometimes used with LED or fluorescent light sources to help control viewing capabilities. Magnifier ability is often expressed as magnification at a specific length. For example, 1.75X at 14†means that when a magnifier is held at 14†from a viewer’s eyes, the object will be magnified 1.75 times (X) its actual size. As magnification increases, viewing areas and focal length decrease. Magnifiers sometimes have a diopter number, expressed as + or - D, which is a measurement of strength (or power) of the lens. Some magnifiers are mark...
