50mm Double Concave Focal Lens - For Techical Work in Making Objects Look Smaller - PP-30696
Regular price $4.05
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Concave lenses are used mainly for people who are farsighted, for binoculars and for telescopes. A lens that is convave makes everything look smaller. You can fit more into the view by using a convave lens. This one is concave on both sides, or rather a double concave lens with ground edges. These are also used in classrooms for hands-on instruction in many technical subjects.
* 50 Mm Diameter * Makes Objects Look Smaller * Many Visual Applications * Used In Classrooms * Excellent Quality