Material	Calcite
Wavelength Range	350-2200 nm
Extinction Ratio	<5x10-5
Surface Quality	20/10 scratch and dig
Beam Deviation	< 3 arc minutes
Wavefront Distortion	λ/4@632.8nm
Damage Threshold	>200 MW/cm2
Coating	Single Layer MgF2
Mount	Black Anodized Aluminium

Standard Products

Part No.	Wavelength Range (nm)	Extinction	Angular	C.A.	O.D.	L±0.1	Unit Price
		Ratio	Field(°)	øa ( mm )	ød ( mm )	( mm )
DPGM5008	350-2200	<5x10-5	>7.7	8	25.4	28	$305
DPGM5010				10	25.4	33	$365
DPGM5012				12.7	25.4	40	$425

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