Made from Plate Glass, with carefully ground and polished optical survaces, and cleanly ground edges, these lenses feature a diameter of 38mm - 125mm and focal lengths from 50mm - 500mm.

Clear plastic slides measures 3" x 1" and feature raised edges designed to be easily gripped by a nechanical stage. The well is approximately 16mm in diameter with a depth of 2 to 3mm. Supplied 10 per pack