- 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 that provide a specific magnification power (X), depending on the distance from the object (focal length)
- 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-grade, acrylic lens ground and polished into a prismatic lens for quality, clarity, and durability
- Can be worn over prescription or safety eyeglasses
0 items added
To add items, choose from the table below
Donegan OSC OptiSIGHT Binocular Magnifying Visor
|Price:||$21.99 - $47.30|
|Sale:||Lower price available on select options|
|Brand Name||Donegan Optical|
The Donegan OSC OptiSIGHT is a hands-free, headband binocu... See more product details
Customers Who Viewed This Item Also Viewed
The Donegan OSC OptiSIGHT is a hands-free, headband binocular magnifier that has an optical-grade, acrylic lens ground and polished into a prismatic lens, and is available in multiple dioptric strengths which provide a specific magnification power (X) at a specified focal length, 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 OSC OptiSIGHT magnifier features replaceable binocular lenses that have beveled edges, and are mounted in an interchangeable plastic frame. An adjustable headband with a padded leather comfort band conforms to a variety of head sizes and provides comfort for hours of continuous use. The magnifier 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 visor in a raised or a forward-facing position. The magnifier comes in assorted body colors such as black, and blue. The magnifier weighs 0.58 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,
offers less distortion. Magnifiers are widely used in jewelry 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?
- OSC OptiSIGHT magnifier
- Fitted, plastic, carrying case
- Instruction manual
Top Customer Reviews
No matter what you use OptiSight for, it is worth the money. I've owned several devices like this over the years and the older I get, the more I need them. Of course, devices like this aren't generally used every day, so they tend to get lost, packed away, whatever. I don't recall ever breaking one, though.
Anyway, this newest iteration is great. It comes with three magnifying lenses:
# 3 that magnifies 1.75x at 14 inch viewing distance
# 4 magnifies 2x at 10 inch viewing distance
# 5 magnifies 2.5x at 8 inch viewing distance
The lenses are plastic and not of the highest quality, but are more than adequate for normal uses. I wouldn't recommend using them for microelectronic assembly six hours a day, but for a couple of hours at a time, they work just fine.
Construction is very simple and robust. It is a band of formed plastic that will fit seemingly any adult head and those of older children. There is a simple tensioning mechanism that holds that lenses where you want them - and it works really well. You won't have to worry about the lenses slipping from the position you put them in. There is a poly strap included in the package - and you better be on the lookout for it, because it is hard to spot in the package - that you use to tighten the band around your head.
Field of view for the lenses is more than adequate for close work.
Overall, the OptiSight Magnifying Visor does the job it is intended to do. At the price, it is an excellent value and a very handy tool to have around when you need it.
As a magnifier, they work pretty well. I use magnifying goggles all the time in my work because of my aging eyes. I can tell you that you can do much better for $20, though. These should sell for about $5. They don't have headband padding and the closure is a crummy slotted rubber strap that goes across the flanges on the two back bands. It has a lot of range -- goes from my 3-year-old's small head to my big man's head, but it doesn't fit as nicely as my $7 cheapo black visors (with Velcro closure) that have two flip-down sets of lenses PLUS a loupe.
Velcro closure of the bands would be better. Screw-down knob on the head-adjustment bands would be better.
The tensioning screws are a plus, though.
This model has plastic lenses, not glass like the more expensive models. I had concerns about the optical quality and durability, but I am happy to be wrong! The optics are clear, and should a lens ever be scratched, they are only around $5 to replace (not $25 like for glass).
It comes with 3 powers: 1.75X at 14" distance, 2X at 10" distance, and 2.5X at 8" distance.
Another lens is sold separately, the OptiSIGHT LE7 lensplate, which is 2X at a 6" viewing distance.
I thought that I would want more magnification, that 2.5X wouldn't be enough, but so far I am very pleased with this purchase. I can wear it while working for hours without headaches or eye strain. And my craftsmanship has improved!
I have no trouble wearing this item on my head for hours on end, unlike the OptiVisor which is worn like a crown and thumbscrewed for comfortable tightness on your skull, you can wear the OptiSight in different positions you find secure and comfortable as it slips on like eyeglasses. I wear it propped like sunglasses atop your head, and pull the lens way down to allow me to see straight ahead easily. Other times where I shift between magnified vision and my unassisted eyes, I wear it like eyeglasses, with the headband resting nearer to the back of my ears. The headband strap is optional for smaller heads or if you like the headband tight, I don't use it.
A reason for choosing Donegan over similar looking competition is their reputation for good optics. While glass for optics is preferred, plastic can be as good and weighs less, if _made_ properly. Lenses have to be free of subtle aberrations to prevent eye fatigue or worse, headaches, and it may not be noticeable until you work for hours with cheaper lenses that look OK by initial inspection. If you buy a cheapo magnifier, you'll have to find how good the lenses or the headband construction is by buying it and working with it for hours.Read more ›
Most Recent Customer Reviews
I can't believe the OptiSIGHT came with three lenses to choose from. Can hardly wait to use it. If it is anything like the Donegan OptiVISOR original, it will be GREAT!Published 5 days ago by J. Wild
Usual Donegan American manufactured quality product. Also allows you to look above the visor (in magnification position) and watch Television Etc.Published 6 days ago by Russ Wentz
I use these to work crossword puzzles and really like not having the glasses sit on my nose and make indentation in my skin.Published 9 days ago by Amazon Customer
Low cost, different colors (so you can keep your own pair to yourself), comfortable and light for short term / several hours work, work well with glasses. Read morePublished 1 month ago by Technologist
I like the lightweight visor as it works well for those with hearing aids. It comes with 3 different lenses for flexibility. Read morePublished 2 months ago by Holls
I really like this magnifier. I enjoy having multiple magnification levels instead of just one. Perfect for electronics assembly or
any close work.
Ordered BLACK and was sent gray. Also, I have a pretty huge head and these are still way oversized and slip off while I work. :(Published 3 months ago by Emily P.
I use these when sharpening tools for woodworking lathe activities. They work great, and I'm happy with the price, would buy again. Read morePublished 5 months ago by J. Straw
Great magnifying to have, still using all the time, its now been 2 -3 years of using it. the only part is that the band has broken off need to look for another band.Published 7 months ago by Thyra Ann K. Clough