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Premium 23 inch diameter f/4.74 primary mirror For Sale

Price - $5,500.00

Ad Number: 210632

Posted: 06 Jun 2020

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An exquisitely figured ultra low expansion full thickness radially ribbed primary mirror at a phenomenally low price. Has been star tested and prospective buyers are invited to star test it themselves. It is uncoated and buyer will have choice of coatings. It weighs 63 lbs and has optical characteristics similar to those on the primary mirror that were on the image that compares Don Parker's image using his 16 inch to the HST as shown but with 40% more resolution and twice the light grasp as both mirrors were figured by myself. All details provided upon request.


  • Condition Excellent
  • Location Illinois

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