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Magnifier Information After the age of about forty you will experience a problem viewing small print and tasks involving
close detail work. This eye condition is called presbyopia and magnification is the answer. Shop our large
selection of magnifying glass for embroidery work and embroidery magnifying lamps. What type magnifier is best? Hand held magnifiers are best
for short duration use and a embroidery magnifying lamp or hands free embroidery magnifier with stand are
best for long duration use. Magnifier glass power and work distance: Select magnifiers with a power that will allow you to perform your task at a comfortable distance.
The higher the power of the magnifier the shorter the focal range(work distance) and the
smaller the field of view. The high power magnifier
may not be the best magnifier for you. Our
large magnifier selection can help those with
presbyopia and macular degeneration. Field Of View: The size of the area being magnified when viewing
through a magnifying lens. The higher the power of the magnifier the smaller the field of view. Diopter: Diopter is a measurement that is used to
calculate the power of a magnifying lens. The higher diopter will provide higher magnification. Diopter is expressed
as "D" Power: Power is how large an object or print increases
as you look through a lens. Magnifying power is expressed as "X"
Focal Length:
Measurement
from the center of the lens to to the object and be in focus . Focal Range:
The distance from the magnifying lens to the object being viewed. Fresnel Magnifier: A flat magnifier consisting of concentric
circles that can be a full page reading magnifier.
Visual impairment (or vision impairment) is a decreased ability to see to a degree that causes problems not fixable by usual means, such as
glasses or medication. Our low vision magnifiers can be of help.
Rules Of Magnification. - The higher the power of the lens, the closer you must get to the object being viewed
and the smaller the field of view.
- As the power of a lens increases the diameter of the lens decreases.
- Diopter is a term used to determine
the power(magnification}of a lens. The terms are sometimes confused.
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