A large magnifying glass with convex lens  permits higher magnification powers but has a smaller field of view. A large magnifying glass with a Fresnel lens  consists of a flat plastic lens with concentric grooves that permits large area magnified viewing. The focal length is about 4 inches from the object to be viewed ad the power is usally 2X to 3X.  For best large magnifying glass results wear your glasses.

    3X Large Magnifying Glass Whole Page

• 3X extra large magnifying glass hand held   
• Flexible full page magnifying glass lens only 
• Very large magnifying glass lens size: 7" x 10   

• As the power of a large magnifying glass or big magnifying glass 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 confuse.

• Magnifiers decrease light transmission. Either provide your own adequate lighting or select a large lighted magnifying glass or big magnifying glass with light.

• Select a large magnifying glass, magnifying glass sheet or big magnifying glass with a power that will allow a comfortable distance. Most people are comfortable with a distance of 10 to 12 inches. To strong maybe to close.
  

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 a  large magnifying glass with light, large lighted magnifying glass or big magnifying glass with light will help.

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 The advantage of a large magnifying glass with light, large lighted magnifying glass or big magnifying glass with light is that they provide a large magnified field of view. Giant magnifying glass with light and stand in stock.

Shop our magnifying glass store for quality large magnifying glass with light and crafts.Large selection of huge magnifying glass Fresnel lenses.

How does a magnifying glass work?

A magnifying glass is a lens through which can be used to make things appear bigger, so you can see them better. It is used in many applications and manual operations.

The magnifying glass consists of a piece of convex^[ shaped glass or plastic. It has to be held at the right distance between the eye and the object for the object to be in focus. Wikipedia

For best extra large magnifying glass results wear your glasses. 

Fresnel Magnifiers 

• The focal length of a Fresnel lens large magnifying glass or large size magnifying glass is about 4 inches from the object to be viewed.
• The power of the Fresnel large magnifying glass is usually 2X to 4X.  
• A Fresnel large magnifying glass with light produces a clearer image and eliminates eyestrain. Our Fresnel magnifiers are LED lighted and emit a soft white light with less heat.
• Wear your glasses for best large magnifying glass results and best big magnifying glass results. .

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Our big magnifying glass selection can help those with presbyopia  and macular degeneration.

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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.