SN0348 12.5" f/4.88 (1.625" Plate)
Obsidian Optics Bench Test
Comments: SN0348 12.5" f/4.88		Date: 11-01-04
   Optical diameter: 12.4"		Substrate: Plate
Radius of curvature: 122.0"		Thickness:  1.625" 

Mirror wavefront error < 1/16th wave PV across both diameters 

Polish, smoothness, diffraction edge, and figure of revolution all excellent

 
 

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