Lens Double-Concave Glass Lens 38mm Diameter 30cm Focal Length.
GSC International 4-90916 Double-Concave Glass Lens – 38mm Diameter 30cm Focal Length – Optical Physics Laboratory Lens for Refraction and…
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Lens Double-Convex Glass Lens 38mm Diameter 20cm Focal Length.
GSC International 4-90904 Lens Double-Convex Glass Lens 38mm Diameter 20cm Focal Length. This double-convex glass lens is made of polished…
Lens Double-Concave Glass Lens 38mm Diameter 50cm Focal Length.
GSC International 4-90919. Lens Double-Concave Glass Lens 38mm Diameter 50cm Focal Length. The glass lens provides superior optical clarity…
Lens Double-Concave Glass 50mm Diameter 5cm Focal Length
GSC International 4-90927 This double-concave glass lens is made of polished optical glass. It measures 50mm in diameter and has a focal length…
Lens Double-Convex Glass Lens 75mm Diameter 20cm Focal Length
GSC International 4-90936 This double-convex glass lens is made of polished optical glass. It measures 75mm in diameter and has a focal length…
Lens Double-Concave Glass Lens 75mm Diameter 20cm Focal Length
GSC International 4-90912. Lens Double-Concave Glass Lens 75mm Diameter 20cm Focal Length. The glass lens provides superior optical clarity…
Burner Tripod 4-inch diameter base and 9-inch height.
GSC International 4-BT52 The burner tripod is constructed with a cast-iron ring and nickel-plated steel support legs. The legs can be removed…
