Magnification or magnification of the magnifying glass means how many times the actual size of the image increases through the magnifying glass. Normally the loupes start between 1.7 and 2X and can go up to 20X in the highest cases.
Normally the magnification is a parameter to consider both in people with reduced vision capacity or if we want to observe elements in detail. But the increase issue is not a panacea since it has certain limitations.
The first limitation corresponds properly to the optical physics of the lens and that the more magnifications the magnifying glass has, the smaller the diameter of the lens will be and therefore the field of view will be smaller.
The second limitation already depends on each person and is related to the vision problems of each person. Not for much magnification that a lens has, we will see better or solve our visual problems. To solve these problems we have optical treatments.
Like all instruments, use is a key factor in choosing the product. Magnifying glasses have multiple uses so we must be clear about what we must use them for.
The first group of magnifying glasses will be those intended for reading. It is the most common use and here we find both pocket and mango or digital magnifiers.
The second group are those magnifying glasses intended for detailed observation. These usually have more magnifications and are marketed for botanical jewelry zoology geology etc ... Therefore they have a more scientific use. We enter the field of coddington and watchmaker's loupes.
And finally there is another more varied group of magnifying glasses for more specific uses such as model making or aesthetics.
The optical treatment of the lens is one of the most important aspects of the magnifying glass, especially if we have any visual deficiency. It will not solve our problems but it will help us see better. Magnifying glasses are a visual aid.
The best known case is that of the macula and the magnifying glasses that incorporate optical treatment to improve the vision of those people who suffer from this visual problem. In this range of magnifying glasses we can find models with light and without light and a great diversity of magnifications between 2X and 5X.
The most advanced models for severe visual impairments are digital magnifying glasses. These do not have the limitation of visual field vs. magnifications and allow regulating multiple functions such as brightness, background color, contrast, light level, etc.
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