�� Specifications:
�� Material: Calcite
�� Wavelength Range: 350-2300nm
�� Surface Quality: 60-40 scratch and dig
�� Dimensions Tolerance: +/-0.1 mm
�� Beam Deviation: < 3 arc minutes
�� Coating: Single layer MgF2AR Coating @1300nm
�� Housing: Black Anodized Aluminum