Hand-held Magnifiers
Hand-held magnifiers are the one of the simplest and most familiar magnifiers to use. Nearly everyone has used a hand-held magnifier at some point in time. The hand-held magnifier design involves a handle that is attached to a lens through which the user will view an object. Because the user has the ability to adjust the distance between the lens and the object, hand-held magnifiers can be used to easily compensate for slight differences in uncorrected nearsightedness or farsightedness.