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30 Inch Diameter Fine f/5 Astro Sitall Mirror

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30 inch f/5 Astro Sitall Mirror

Specifications - - -
Material - - Astro Sitall. Coefficient of thermal expansion is 1/100 that of Pyrex. No fans needed.
Figured and coated by QSP - Optical Technology Inc., Santa Ana, California, now known as Infinite Optics.
Figure - - f/5 paraboloid
Surface accuracy - - 1/16 wave
Thickness - - 2 inches
Coating - - 96% reflectivity
Weight - - 126 pounds
This is an outstanding mirror in excellent condition. Makes exceptional images.
PayPal preferred.

Shipping - - -
Buyer pays shipping cost of $650 to lower 48 states in triple padded custom wood box.
Free pick up in San Angelo, Texas.
Box containing mirror weighs 165 pounds. Can be handled by one person with a hand truck dolly, or by 2 people manually (box has 2 handles), or by fork lift.

Secondary diagonal mirror available. Is 5½" minor axis flat, Pyrex 1/10 wave in Astro Systems cell. $120 including shipping to lower 48 states.
27 point primary mirror cell available.