SN0304 16" f/4.65 (1.65" Pyrex)
Obsidian Optics Bench Test
Comments: SN0304 16" f/4.65 Date: 11-29-04
Optical diameter: 15.96" Substrate: PA Pyrex
Radius of curvature: 148.75" Thickness: 1.65"
Mirror wavefront error < 1/20th wave PV across both diameters
Polish, smoothness, diffraction edge, and figure of revolution all excellent
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