16" Mirror Spherical f/1.2 Meade Pyrex
This mirror is new and just opened box for photos.
Here are the specs of this primary mirror as measured by a professional in optics manufacturing:
Pyrex Spherical Mirror by Meade - MSRP $2500
Speed = f/1.2
Spherical figure ~ ¼ wave
Clear Aperture Diameter = 16"
Radius = 35"
Bore = 4.25"
Pyrex cast blank (not sagged), avg. thickness = no less than .75"
Aluminum Coated with SIO overcoat
Ronchi test showed smooth parallel lines
Uniform .75" thickness allows for very quick temperature acclimation.
The above information is guaranteed!
NOTE: This is a fast (f/1.2) spherical mirror. It is not for the novice who just wants to slap a flat secondary on it and start looking at planets. It may be usable as a deep sky telescope primary... but it would need to have a corrector plate made to correct for spherical aberration. Whenever you see "spherical" you should be aware that the focal plane is curved (requiring either a curved CCD receiver or a corrector plate).
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