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Category: Hobbies

Rating: 4.7 / 5.0 (37 votes)

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3 new from $27.60

(as of 2013-12-06 14:31:10 PST)

Donegan LX-5 OptiVISOR with Optical Grade Acrylic Lensplate, 2.5x Magnification, 8″ Focal Length by Donegan Optical

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Donegan Optical
Really Helpful Age
Thirteen years and up
Donegan Optical
2.5x Magnification,
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  • Binocular headband magnifier offers hands-free magnification and viewing for quite a lot of functions akin to jewellery-making, watch-making, needlework, art work, and stamp-collecting
  • Available in multiple dioptric strengths (indicated within the edition number) that provide a selected magnification Power (X), relying on the distance from the item
  • A dioptric number and a magnification quantity usually are not the identical thing. Diopter strength represents a selected magnification Power (X). For Instance, a 5-diopter offers 2.5X magnification (at a distance of Eight”)
  • Optical-grade acrylic lens plate floor and polished into prismatic lenses for high quality, clarity, and durability
  • Adjustable headband with padded leather-based comfort band conforms to numerous head sizes and offers alleviation for hours of continuous use


The Donegan OptiVISOR LX is a fingers-free, headband binocular magnifier that has an optical-grade, acrylic lens plate that’s ground and polished into prismatic lenses for quality, clarity, and sturdiness, and is To Be Had in a couple of dioptric strengths (indicated in the version number) which provide particular magnification Energy (X) at distinct focal lengths, or distance from object. This magnifier enhances the size and resolution of an object or image, and is frequently used for a number of functions similar to jewelry-making, watch-making, needlework, artwork, electronic inspection, e book-reading, print inspection, and stamp-collecting.

The OptiVISOR LX magnifier incorporates a sturdy, replaceable binocular lensplate, fabricated from optical grade acrylic (variation AL-Thirteen). An adjustable headband with padded leather alleviation band conforms to a variety of head sizes and provides remedy for hours of continuous use. It May Be worn over prescription or security eyeglasses. A sturdy, plastic visor pointers up above the brow when no longer in use. Spring-loaded pivot screws dangle the headscarf in a raised or a forward-facing place. The magnifier weighs Zero.67 lbs., and comes housed in a protecting shell and carrying case. It has a one-yr limited warranty.

Diopter (D) is a technical time period for the dimension of the sunshine curvature and thickness of a lens. A dioptric number and a magnification number aren’t the identical factor. Diopter energy represents a specific magnification Power (X). As An Example, a 5-diopter provides 2.5X magnification (at a distance of Eight”). The Upper the diopter, the more magnification a lens can provide. As magnification increases, distance to the object (focal Length), and box of view (diameter, or narrowness of view) decrease. Magnifiers and prescription eyeglasses have a diopter value, similar to 1.5 or 2. The dioptric potential of an adjunct lens, comparable to prescription eyeglasses or a watch loupe, have to be delivered to the dioptric power of the magnifier to calculate whole magnification.

Magnifiers are gadgets used to amplify the visual appearance of an object or picture. Magnifiers come in quite a lot of styles similar to hand-held, headscarf, standing, clip-on, eye loupe, and people who hang in a necklace form, or slot in a trouser pocket. Magnifiers are repeatedly manufactured from plastic or glass. They Are Able To have a number of lenses with various magnification abilities, and can have a binocular configuration with a single lens, or two separate lenses. They Are infrequently used with LED or fluorescent Gentle sources to assist keep watch over viewing capabilities. Magnifier capability is ceaselessly expressed as magnification at a particular Length. For instance, 1.75X at 14” implies that when a magnifier is held at 14” from a viewer’s eyes, the object shall be magnified 1.Seventy Five occasions (X) its actual Size. As magnification will increase, viewing areas and focal Size lower. Magnifiers sometimes have a diopter number, expressed as + or – D, which is a size of strength (or Power) of the lens. Some magnifiers are marked with a dioptric quantity on the lens. A high diopter quantity has a higher magnification than a low diopter number. Aspheric magnifiers, not like spheric magnifiers, produce a sharp image to the fringe of the lens for less distortion. Magnifiers are broadly utilized in jewellery


Figuring Out Magnification

Focal Size
(Distance from object)
Pattern view
20/20 vision
20″ (50.8cm)
No   Magnification
2-diopter lens
20″ (50.8cm)
1.50x   Magnification
3-diopter lens
14″ (35.56cm)
1.75x   Magnification
Four-diopter lens
10″ (25.4cm)
2.0x   Magnification
5-diopter lens
Eight” (20.32cm)
2.50x   Magnification
7-diopter lens
6″ (15.24cm)
2.75x   Magnification
10-diopter lens
4″ (10.16cm)
3.50x   Magnification

inspection and fabrication, watch- making, needlework, art work, reading, print inspection, and stamp-gathering.

Donegan Optical manufactures and distributes precision visible gadgets for hobbyists and mavens in trade, residence, office and crafts purposes. The Corporate used to be based in 1952 and is headquartered in Lenexa, Kansas.

What’s within the Box?

  • OptiVISOR LX magnifier
  • Equipped, plastic carrying case
  • Guide manual

Equivalent Merchandise

Donegan LP-1 OptiLoupe Magnifier to OptiVisor, 2.5x Magnification, Eight” Focal Length
Led Mild Attachment For Optivisor – ELP-558.00
Donegan LP 5 Alternative Lens for Opti-Visor, 2.5x Magnification, 5 Diopers, Eight” Focal Size
Donegan LT-06 VisorLIGHT with Wire for the OptiVISOR, 6000 Candle Energy, 10″ Cord Size
Donegan OptiVISOR LX Binocular Magnifier-Lensplate #4 Magnifies 2X At 10″ Focal Length


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