�� Specifications:
�� Material: Calcite, a-BBO, YVO4, Quartz
�� Surface Quality: 20-10 scratch and dig
�� Dimensions Tolerance: +/-0.1 mm
�� Beam Deviation: < Arc 3 minutes
�� Wavefront Distortion: Lambda/4@632.8nm
�� Coating: Single layer MgF2 Coating
�� Housing: Black Anodized Aluminum