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Beecher Mirage Binoculars are binocular magnifiers designed for use by individuals with low vision. These head-mounted telescopic glasses come in powers of 4X, 5X, 7X.
4X glasses have a 15-degree field of view with a viewing distance (focal range) of five feet to infinity;
5X glasses have a 12- degree field of view with a viewing distance of six feet to infinity;
7X glasses have a nine-degree field of view with a viewing distance of eight feet to infinity
WEIGHT: 3.5 ounces.
| Magnification |
Focal Range
(approximately) |
Field of View |
| 4 x |
5 ft to infinity |
15 degree |
| 5 x |
6 ft to infinity |
11 degree |
| 7 x |
8 ft to infinity |
9 degree |
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