SN0R12 12.2" f/4.9 (1.5" Pyrex)
Obsidian Optics Bench Test
Comments: SN0R12 12.2" f/4.9		Date: 10-20-06
Optical diameter: 12.01"		Substrate: Pyrex
Focal length: 58.8"			Thickness:  1.48" 
Mirror wavefront error < .05 wave PV across both diameters 
Polish, smoothness, diffraction edge, and figure of revolution all excellent
 
 

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