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 marked with a dioptric number on the lens. A high diopter number has a higher magnification than a low diopter number. Aspheric magnifiers, unlike spheric magnifiers, produce a sharp image to the edge of the lens for less distortion. Magnifiers are widely used in jewelry inspection and fabrication, watch-making, needlework, artwork, fly-tying, electrical inspection, reading, print inspection, and stamp-collecting.
Donegan Optical manufactures and distributes precision visual devices for hobbyists and professionals in industry, home, office and crafts applications. The company was founded in 1952 and is headquartered in Lenexa, Kansas.
What’s in the Box?
- Flashlight magnifier
- Vinyl carrying pouch
- Instruction manual
