| Diam., mm | 38, 50 |
|---|
Optics
Lenses, Set of Six
Glass, one each double convex, plano-convex, concavo-convex, convexo- concave, plano – concave, and a double concave lens, in box.
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Glass, one each double convex, plano-convex, concavo-convex, convexo- concave, plano – concave, and a double concave lens, in box.
| Diam., mm | 38, 50 |
|---|
