PEAK single lens linen tester. Known for their versatility and portability, high quality, optically ground glass lenses. Lenses are mounted in a heavy duty, precision machined, black aluminum frame. They can be easily folded and carried comfortably in a pocket. Color corrected lenses. 9X magnification. 0.5" lens diameter. 0.5" field of view. 1 glass lens optical system. Base measures 1-7/64" length by 49/64" width.
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