Double Concave Spherical Lenses: -20D - Pack of 5

https://www.c2asalesandsupplies.com/web/image/product.template/8461/image_1920?unique=a67d8fe

Diameter & Focal Length: 50mm / 50mm Power: -20D
Refractive Index: 1.52 approx.

65.00 65.0 BBD 65.00

65.00

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