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What you should consider in buying a hands free magnifier.
A large hands free
magnifier is perfect for the person who has to keep both hands free. Enjoy reading or performing intricate tasks for crafts or model building with our magnifiers hands free.
There are many types of hands free magnifiers such as head magnifier, desk
magnifier and magnifying lamps.
hands free magnifier is best for long term use. Hand magnifiers are used for a short term .
- Allows for long duration use.
- Usually more expensive
then a hand magnifier.
- Larger viewing
- Allows use of both hands for reading,
crafts and close detail tasks.
- Lighted or unlighted magnifier.
There is confusion over the terms lens power(x) and lens diopter(D).
Diopter is a term that is used to calculate power. Ex: 4 diopters(4D) = 1 power(1X)
Does not apply to
Fresnel Lens magnifiers which have a focal range of 4 inches.
Information On Fresnel Hands Free Magnifier:
A full page hands free lighted magnifier consists of a Fresnel lens with light that allows reading of
a whole page. The
advantage of a full page hands free magier is that it is a whole page magnifier.
Is A Fresnel Magnifier?
A Fresnel magnifier consists of a flat plastic lens with concentric
grooves for magnified viewing. The focal length is about
4 inches from the object to be viewed.
The high power magnifier may not be the best magnifier for you. Our large hands free reading magnifier selection
can help those with presbyopia and macular degeneration.
Field Of View:
The size of the area being magnified when viewing through a magnifier lens. The higher the power
of the hands free reading magnifier the smaller the field of view.
Diopter is a measurement that is used to calculate the power of a magnifier lens. The higher
diopter will provide higher magnification. Diopter is expressed as "D"
Power is how large an object or print increases as you look through a lens. Magnifying power
is expressed as "X"
Measurement from the center
of the lens to to the object and be in focus
The distance from the magnifying lens to the object being viewed.
A flat magnifier consisting of concentric circles that can be a full page
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.
- The higher the
power of the lens, the closer you must get to the object being viewed and the smaller the field of
- As the power of a lens increases
the diameter of the lens decreases.
is a term used to determine the power(magnification}of a lens. The terms are sometimes confused.
Jewelers Trade Links
Accredited Gemologists Association
International Watch & Jewelry Guild
Jewelry Industry Distributors Association
Women’s Jewelry Association
Knitting, Crochet, and other Needlecrafts
How To Sew
Basic Sewing Stitches
How to Crosstitch
How To Do Needlework
The American Foundation for the Blind
National Library Service for the Blind and Physically Handicapped
Paths To Literacy
National Eye Institute
American Action Fund for Blind Children & Adults
National Eye Health Education Program