Need a Magnifying Glass? Here’s What You Need to Know to Select the Right Magnifying Glass For You
The first step in making your selection, is to decide exactly how you want to use your magnifying glass. Will it be used to read a newspaper or a book, read the fine print on a map, or a finely printed prescription label. Do you want to read a menu in a restaurant, examine a diamond or gemstone? There is a wide range of different types of magnifiers in addition to the popular lollipop or Sherlock Holmes shape, such as Head Visor magnifiers and the pendant necklace magnifying glass. You can choose pocket or purse folding magnifiers, an eye loupe, table top magnifiers and round the neck hands hands free magnifiers. You can find lighted magnifying glasses including LED lighted jewelers loupes, lighted pocket magnifiers and lighted hand held magnifying glasses. You can find the type of magnifying glass to meet your specific requirements.
Are there limitations to How to Use Your Magnifying Glass?
There are hundreds of styles and designs of magnifying glasses, and probably thousands of ways to use them. For example, we have taken orders for 5x hand held magnifiers for the examination of windshields for defects. A border protection department as well as a police department use a pocket 10x folding magnifying glass to examine documents. A county department of agriculture purchased 20x jewelers loupes to be used to examine crops for for insect and blight problems. What do you want your magnifying glass or jewelers loupe to accomplish for you? That will help to determine exactly what type of magnifying glass to select.
Will One Size of Magnifier Meet All Your Needs?
Probably not, but one very popular solution gives you A choice of several hand held magnifying glasses sold together in sets. These provide multiple magnifying powers and varied diameter lenses that can be used as needed for different purposes.
What Is The Suggested magnification and Size For Reading?
Hand held magnifying glasses are excellent for general use such as reading maps or newspapers or books. Use the larger ones with 3x to 6x magnification and 3, 3 1/2 or 4 inch diameter for newspapers books and magazines. Use the smaller 8x or 10x 2 inch diameter for finer print. If low vision is a problem for you there is a wide variety of electronic vision aids available for those who require greater magnification than standard magnifying glasses offer.
About Hand Held Magnifying Glass Magnification
We get several requests each week for a large size magnifying glass with 20 or 30 times magnification. The problem is that the curvature 0n the surface of the glass or plastic lens determines the magnification. The smaller the curve the higher the magnification and the smaller the diameter of the lens. The Larger the curve the less magnification and the wider the diameter of the lens can be. That is a very simplified explanation of why you can’t find a hand held magnifying glass that magnifies 15 20 or 30 times and has a 6 o 8 pr 10 inch diameter lens That’s why we have 10 time magnification in a 2 inch diameter glass lens, but only up to 5 or 6 time magnification in a maximum 3 or 3 1/2 pr 4 inch diameter lens.
Here are some important magnifying facts to be aware of.
What Does Focal length, Field of View. and Depth of Field Mean
Magnifying Power The ability of the lens to increase the visual size of an object. The X (times) is used to identify this factor. A magnifying lens bends light rays resulting in an image that looks larger than the actual object. For example, a 3X magnifier triples the size of an image, 4x magnifies 4 times, 5x five times and so on. Focal Length or Working Distance. In addition to power, a magnifying glass can also be classified by its working distance. The higher the power of a lens, the shorter the working distance (the distance between the object and the magnifier. For example, a 2X lens has a working distance of 5″. That means that the magnifier will provide double magnification and be in clear focus when held at a distance of 5″ from the object. Field of View is the size of the area that you see through the magnifying glass. The field of view becomes smaller as the magnifying power increases.
Depth of Field is the distance that a magnifier can be moved above an object and still have the object in focus. The higher the magnification, the shorter the depth of field. Choosing where to buy your magnifying glass is just as important as selecting the magnifying glass.here are some suggestions on how to find the right place to make your selection. You want to make your purchase from a company that offers you an unconditional guarantee. For example,If you order your magnifying glass and then discover that it’s just not the magnifying glass you need, you should be able to return your purchase for another selection or return it for a full refund. You may not find a retail store that has what you want and you may have to place your order on the internet. That’s why it is most important to find a seller who unconditionally guarantees your satisfaction.