042-37-802-297 042-37-814-140
Workring Hours: (9:00 AM to 6:00 PM)
042-37-802-297 042-37-814-140
Workring Hours: (9:00 AM to 6:00 PM)
Product Code(SKU): S0015VF6X2
Import from USA in Pakistan 
Availability: Instock in USA ✔
Product Category: BISS
Amazon Category: BISS
Product weight: 0.50 Pounds
Brand: Donegan Optical
Important : This product will take 3 to 4 weeks to delivery at your doorstep.
The Donegan OptiVISOR is a hands-free, headband binocular magnifier that has optical glass lenses that are ground and polished into prismatic lenses for quality and clarity, and is available in multiple dioptric strengths (indicated by the number in the model) which provide specific magnification power (X) at specific 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 magnifier features replaceable binocular lenses that have beveled edges that are mounted in an interchangeable plastic frame. 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”). See the magnification chart. 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) decreases. 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 inspection and fabrication, watch-making, needlework, artwork, reading, print inspection, and stamp-collecting. | Determining Magnification
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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?
Answer: The pricing of our products is determined by their weight and size. Additionally, fluctuations in the dollar exchange rate in Pakistan may result in changes to our prices. To obtain the most accurate and up-to-date pricing, please check our website or contact our sales representative before placing your order.
Answer:
On all product pages you get two buttons to place your order
If you just want to quickly place your order just click on Order Now button and provide basic contact us detail and done otherwise you also have add to cart option so can place your order at your ease.
Answer: No, we don't have physical store but you can place your from our office or from online.
Answer: Yes, we ship in almost all the cities of Pakistan using famous courier & logistic services of Pakistan.
Answer:Since we import products from USA, Canada, UK or China so it take 3 to 4 weeks. We do our best to make import process fast and smooth and try to deliver ASAP all across Pakistan.
Answer: Yes! you can do until or unless you can deposit 30% advance using one of our payment methods you can place order from anywhere of world.
Answer: We always try to buy products using Amazon USA from the brands or official resellers. In case of any confusion we can share amazon or eBay order ID with you so you can check with them directly.
Answer: Since we buy your products from Amazon USA so you can read product reviews before to orders us. For your convenience, you can find the product review link on all the product pages.
Answer: We have no product exchange policy. Yes! If you get wrong product or if product not working properly, you can return it within 3 days of delivery.
Answer: In case your refund approve we try to make sure it within 7 days.
Answer: If the product you get will be different from the one you order then we will make its 100% refund.
Answer: No, it's for reference only. Consult with right more technical person before to use.
