The QWPD-1064-2-532-1-05 from CVI Laser Optics is a dual wavelength waveplate that operates at 1064 and 532 nm. The 12.7 mm diameter waveplate has a clear aperture of more than 85% of the diameter. It has a surface quality of 10-5 scratch-dig and a retardation tolerance of λ/100 at both wavelengths. This waveplate is used in a number of applications to enable selective processing of the beams.