SN0350 12.5" f/6 (1.5" Pyrex)
Obsidian Optics Bench Test
Comments: SN0350 Beebe 12.5" f/6		Date: 10-8-04
   Optical diameter: 12.44"		Substrate: PA Pyrex
Radius of curvature: 150.13"		Thickness:  1.5" 

Mirror wavefront error < 1/30th wave PV across both diameters

Polish, diffraction edge, figure of revolution excellent; smoothness fine

 
 

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