Crystalline Materials:	BaF2 CaF2 MgF2 LiF CdTe GaAs Ge InSb MgO MBr NaCl KCl	All standard amorphic Glasses (BK-7 etc.) Si SiC Fused Silica KRS-5 ZnSe ZnS (including Multispectral Grade) Amtir 1 & 3 As2S3 (Arsenic Trisulfide) Filter Glasses Chalcogenide Glasses
Geometry:	PI/Cx Bi/Cx Plano Spherical Aspherical Round Cylindrical Prisms Axicons Assemblies Off Axis	Aluminum Alloys: 1100 2011 2017 2024 5086 5186 6061 7075 Copper (OFHC) Brass Tin Silver Gold Nicken (electroless plate) Nylon Acrylic Polycarbonate Polystyrene
Tolerances: (sizes from 3mm to 300mm)	Windows	Flatness to 1/20 wave @ .632 microns Parallelism to 1 arc second Low Aspect Ratio (LAR) capabile to 1/2 wave @ 50:1
	Lenses	Irregularity to 1/10 wave @ .632 microns ETV < .005mm (.0002 inches)
	Prisms	Flatness to 1/20 wave @ .632 microns Angles/Pyramidal error to +/- 5 arc seconds

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