The 5511 General Purpose Sheet Polarizer is perfect for those in-between times when you need a polarizer with a large aperture and acceptance angle, but you don't need the high extinction ratio (or the expense) of a calcite polarizer. The laminated structure of these polarizers makes them durable and perfect for low-power applications. The convenient 1.0 inch outer diameters of the holders fit in standard 1.0 inch mounts, including our rotary stages. Wavelength range is 450-750 nm.