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From $3.25
United Scientific™ DOUBLE CONCAVE LENS—
$3.25
The Story
Double concave lens with 38mm diameter and 50mm focal length. Made from plate glass, with carefully ground and polished optical surfaces, and cleanly ground edges.
Description
Double concave lens with 38mm diameter and 50mm focal length. Made from plate glass, with carefully ground and polished optical surfaces, and cleanly ground edges.
