Edmund Optics (Barrington, NJ) has doubled its offering of stock Zinc Selenide Plano-Convex (PCX) Lenses. The Zinc Selenide Plano-Convex Lenses are available individually, in diameters of 12.7, 25.4, and 50.8 mm, with a variety of focal lengths in both uncoated and 8-12 μm AR coated models. The anti-reflection coating has less than 0.5% reflection from 7.5 - 13.5 μm. A lens kit containing all nine uncoated 25.4-mm-diameter Zinc Selenide PCX Lenses is also offered. The Zinc Selenide Plano-Convex (PCX) Lenses have a usable transmission range of 600 nm to 16 μm with low dispersion.