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Stunning! JC Wilkinson 14.5” Astrosital Mirror!! Sold!

Price - $1,800.00

Ad Number: 162159

Posted: 11 Feb 2019

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Stunning- Rare - Astrosital 14.5”, f5.2 Jerry Wilkinson Mirror- If you are looking for a 14.5” mirror of slightly longer focal length then this is for you.
Stunning performance from this mirror.
Originally made 22 years ago by J.C.Wilkinson the mirror is 1-9/16” (40mm) thick and weighs 21 lbs.
The substrate is Astrosital a glass-ceramic material developed in Russia. Astrosital resembles Zerodur in terms of its ultralow thermal expansion.
Etched on the backside of the mirror is “Figured by J. C. Wilkinson - FL75.1”, his signature and focal length.
The mirror was recently recoated by Ostahowski Optics with 96% enhanced coating and center spot.
I do not have a mirror report but prior to coating Terry Ostahowski stated in an email;
“The primary has a clean edge and a “smooth” parabolic sweep with no breaks in the sweep, i.e. zones, hills or holes. I can’t place a wave number on it without interferometric data + software analysis but it would pass interferometry, that much I can say.”
So please search various forums as to the quality of Wilkison mirrors.
I believe to get a similar quality mirror cost would be in excess of $3500 so this is an excellent buy.
Price is $1800 which includes shipping in CONUS and PP fee


  • Condition Excellent
  • Location Pine Bush, NY

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