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  • Donegan OptiVISOR LX Headband Magnifier with Optical Grade Acrylic Lensplate
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Donegan OptiVISOR LX Headband Magnifier with Optical Grade Acrylic Lensplate

Available in multiple versions

71 customer reviews

Price: $28.70 - $57.57
Product Specifications
Brand Name Donegan Optical
UNSPSC Code 41100000

The Donegan OptiVISOR LX is a hands-free, headband binocular... Read full product description



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1.75x Magnification, 14" Focal Length B0006O8RWS
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$30.66
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2.5x Magnification, 8" Focal Length B0006O8RX2
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Product Features

  • 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
  • Optical-grade acrylic lens plate ground and polished into prismatic lenses for quality, clarity, and durability
  • 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")
  • Can be worn over prescription or safety eyeglasses

Product Details

  • Shipping Information: View shipping rates and policies
  • Domestic Shipping: Item can be shipped within U.S.
  • International Shipping: This item is not eligible for international shipping. Learn More
  • ASIN: B005KLTMUI
  • Average Customer Review: 4.6 out of 5 stars  See all reviews (71 customer reviews)
  • Product Warranty: For warranty information about this product, please click here

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Product Description

The Donegan OptiVISOR LX is a hands-free, headband binocular magnifier that has an optical-grade, acrylic lens plate that is ground and polished into prismatic lenses for quality, clarity, and durability, and is available in multiple dioptric strengths (indicated in the model number) which provide specific magnification power (X) at specified 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 jewelry-making, watch-making, needlework, artwork, electronic inspection, book-reading, print inspection, and stamp-collecting.

The OptiVISOR LX magnifier features a durable, replaceable binocular lensplate, made of optical grade acrylic (model AL-13). An adjustable headband with padded leather comfort band conforms to a variety of head sizes and provides comfort for hours of continuous use. It can be worn over prescription or safety eyeglasses. A durable, plastic visor tips up above the forehead when not in use. Spring-loaded pivot screws hold the headband in a raised or a forward-facing position. The magnifier weighs 0.67 lbs., and comes housed in a protective shell and carrying case. It has a one-year limited warranty.

Diopter (D) is a technical term for the measurement of the light curvature and thickness of a lens. 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”). The higher the diopter, the more magnification a lens can provide. As magnification increases, distance to the object (focal length), and field of view (diameter, or narrowness of view) decrease. Magnifiers and prescription eyeglasses have a diopter value, such as 1.5 or 2. The dioptric strength of an accessory lens, such as prescription eyeglasses or an eye loupe, must be added to the dioptric strength of the magnifier to calculate total magnification.

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

 

Determining Magnification

Diopter
Magnification
Focal length
(Distance from object)
Sample view
20/20 vision
20" (50.8cm)
No   Magnification
2-diopter lens
1.50X
20" (50.8cm)
1.50x   Magnification
3-diopter lens
1.75X
14" (35.56cm)
1.75x   Magnification
4-diopter lens
2.00X
10" (25.4cm)
2.0x   Magnification
5-diopter lens
2.50X
8" (20.32cm)
2.50x   Magnification
7-diopter lens
2.75X
6" (15.24cm)
2.75x   Magnification
10-diopter lens
3.50X
4" (10.16cm)
3.50x   Magnification

inspection and fabrication, watch- making, needlework, artwork, 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?

  • OptiVISOR LX magnifier
  • Fitted, plastic carrying case
  • Instruction manual

Customer Questions & Answers

Customer Reviews

Most Helpful Customer Reviews

28 of 28 people found the following review helpful By John R. Sims on October 19, 2007
Size: 2.5x Magnification, 8" Focal Length
OptiVisor w/Lens, 2 1/2 x @ 8"

A MUST HAVE!

This Visor is an esential part of anyones tools .. that do fine detail work or for someone whose sight has been limited ... the different magnifications will suit anyones needs,,, also available are 2 attatchments I highlt reccomend ..
1) The Opti-Light.. this attaches to the visor and lights your work for easy viewing
2} The Opti-Loupe .. This adds extra magnification when in the down position .. also flips up out of the way with 1 finger
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30 of 31 people found the following review helpful By Ironwulf on December 20, 2008
Size: 2.5x Magnification, 8" Focal Length Verified Purchase
Have NO idea why this TOOL is being called a 'toy' ...
It is a magnifying optical visor i.e. 'Optivisor' and Donegan's is the very best on the market. Nothing else comes close. You may wish to review the product more fully and realize that the LX is the 'lightweight' version which in essence means that the lens' are plastic. The Optivisor is also available with glass lens'. Since plastic will scratch more easily, consider that. On the other hand, save some money on the LX and just be as careful as you always should be with a professional grade tool. I recommend the two and a half lens for starters. You can always buy more or less powerful lens as you need them. They interchange. You don't need another base visor. Also look up the optional 'loupe'. It attaches easily and is very helpful in extreme closeup work. I used to use mine often polishing out molds to 8 micron by hand.

GOTO: [...]
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18 of 18 people found the following review helpful By Kathleen Nelson on March 31, 2007
Size: 2.5x Magnification, 8" Focal Length Verified Purchase
I love this headband! It is the perfect way to view my work up-close. I do permanent make-up and it is imperative to magnify the work as it is being done in order to have good results. This style of headband is comfortable and the magnifying lenses are interchangeable in order to aaccommodate different focal lengths. A battery-powered light is available to facilitate lighting if that is an issue. It definitely meets my needs.
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10 of 10 people found the following review helpful By Glen Clark on May 25, 2007
Size: 2.5x Magnification, 8" Focal Length Verified Purchase
There have been OptiVisors around my parents home since I was a kid. Dad was a jeweler. Now I'm a painter of very small pictures and needed a set to do my art. I knew just were to turn.
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9 of 9 people found the following review helpful By Kindle Customer on November 11, 2009
Size: 2.5x Magnification, 8" Focal Length Verified Purchase
This is a necessary tool for any one who does close work of any kind. This is the best brand made. They are very durable.
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7 of 7 people found the following review helpful By Rabbi T on September 8, 2011
Size: 2.5x Magnification, 8" Focal Length Verified Purchase
My aunt has macular degeneration and is legally blind. She lives alone and with this disease she has been unable to continue her knitting hobby. I bought this product to enhance the little vision she has. Though it musses up hair a little, she can now knit again. This has made her unbelievably happy. Thank you!
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6 of 6 people found the following review helpful By Linda Gail on September 28, 2010
Size: 2.5x Magnification, 8" Focal Length Verified Purchase
I really am enjoying this vision assistance, and I use it for lots of things. I do crafts, and I especially like that I can flip it up or down and don't have to take it off until I'm finished with my project. It's a great aid for old(er) eyes!
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28 of 37 people found the following review helpful By CashFan on October 13, 2011
Size: 1.75x Magnification, 14" Focal Length Verified Purchase
I'm giving this item a one star rating for one simple reason: the picture and listing of product features are, in my opinion, deceptive. The picture shows the Optivisor with ***GLASS*** lenses. Order this item and you will get a visor that looks different and has plastic lenses. That is a substantial difference in quality. The "Product Features" section does not clarify that the lenses are plastic and states that they are "prismatically ground and polished." It is very specific about the magnification, focal length, and mechanical features. It uses language that - when viewed in conjunction with a picture depicting glass lenses - suggests the lenses in this product are glass. Yes, if you read carefully the product description does state that the lens is acrylic - but that statement is near the end of the description - and two screens down. If you are already familiar with the Optivisor product (I own two other Optivisors with glass lenses) then you know that the glass lenses with their bright blue markings look different than the plastic lenses. This Amazon product listing is deceptive. Glass lenses, unlike these cheap plastic ones, are quite durable and scratch resistant. I have two Optivisors with glass lenses and I recommend them. I'll be returning these. Out of curiosity I decided to view other Optivisor listings on Amazon. I found that the Optivisor without a lens is available for $21.79 ($1.16 less than the current price listed for this item and, incidentally, its photo also depicts a glass lens) and that other listings make no mention at all of whether the lens is glass or plastic.
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Most Recent Customer Reviews