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18 Nov 2018

Views: 1709


$50,000.00

For Sale 75" Low Expansion Telescope Blank Corning Glassworks


By: gatorengineer Location: Pittsburgh PA Area

Not a typo. Over 2 yards of fun for someone. Kev and I have to settle for 71" the hard way. This one is not going...

21 Aug 2019

Views: 759

Sold!
$15,000.00

For Sale 28" F/4.1 Techno-Fusion mirror


By: Astronorm Location: Canada

This is a lightweight fast cooling mirror. 3 times more rigid than a solid mirror and reach thermal equilibrium in le...

18 Apr 2017

Views: 1768


$15,000.00

For Sale Large Lightweight Mirrors


By: Astronorm Location: CANADA

If you are looking for a large Lightweight Mirror, I developed over the last 5 years with the help of Laval Universit...

13 Oct 2020

Views: 405


$11,111.11

For Sale Tube and carrier for 8" Newtonian


By: MikeBY Location: Huntington Beach, CA

Greetings, For sale is a handcrafted telescope tube to make an 8" long tube Newtonian. The tube is made of luan type...

22 Jan 2020

Views: 788


$8,000.00

For Sale Vacuum Deposition Mirror Coating System


By: DaystarJen Location: Warrensburg, MO

Complete NCR 3117 Vacuum Deposition Coating Deposition System for mirrors up to 18".This system is set up to coat mir...

08 Jan 2020

Updated: 13 Feb 2020

Views: 975

Sold!
$6,000.00

For Sale 30 inch f/5 Astro Sitall Mirror


By: redman2 Location: San Angelo, Texas

30 inch f/5 Astro Sitall Mirror Specifications - - - Material - - Astro Sitall. Coefficient of thermal expansion is...

27 Apr 2019

Updated: 13 Nov 2020

Views: 745

Sold!
$5,775.00

For Sale 24" PEGASUS MIRROR W/4" SECONDARY


By: ARA AVEDISSIAN Location: Northern Arizona

A 24inch mirror done by master optician none other than John Hall of Pegasus Optics. 24" f 4.5, 108 inch focal length...

06 Jun 2020

Updated: 20 Nov 2020

Views: 959

UPDATED
$5,500.00

For Sale Premium 23 inch diameter f/4.74 primary mirror


By: Jedi Dan Location: Illinois

An exquisitely figured ultra low expansion full thickness radially ribbed primary mirror at a phenomenally low price....

19 May 2020

Updated: 01 Jun 2020

Views: 486

Sold!
$5,500.00

For Sale Normand Fullum 20" x 1.5" F/3.3 Mirror "New Price"


By: Astronorm Location: Canada

New Price for fast sale !!! Was $6500. Now for $5500. !! HiWhile in confinement, I had time to make this beauty...

25 Apr 2018

Updated: 25 Apr 2018

Views: 1063

UPDATED
$5,000.00

For Sale Glass blanks for sale


By: AstroDxtr54 Location: Arizona

1- 22 1/2" Pyrex blank, 3 1/2" thick, center hole, with finished 21 1/2" Maksutov Corrector Plate (the plates the har...

29 Oct 2020

Updated: 12 Nov 2020

Views: 293

UPDATED
$5,000.00

For Sale Complete 20" f/5 parts, brand new everything!


By: Edobson20 Location: Datil, NM

Torus OMI 20" f/5 mirror new in box. 3.5" Antares 1/30th wave new. Brand new Astrosystems spider and matching seconda...

05 Jun 2019

Views: 1008


$4,500.00

For Sale 60" Polishing Machine


By: ioptics Location: Salt Lake City, UT

60" Capacity Spindle Polisher Heavy Duty Came out of optical lab, fully functional 220Volt Single Phase DC Motors Of...

29 Sep 2017

Views: 914

Sold!
$4,200.00

For Sale 20" f/4 Mirror plus secondary


By: RickDarden Location: Key Largo Florida

Hello All, As you know, Florida was hit with Irma. We fared OK here in Key Largo. The mirror (and all my astro stuff...

24 Nov 2018

Updated: 27 Nov 2018

Views: 692

Sold!
$4,200.00

For Sale Lockwood 16” F4 Quartz 1” thick with 3.5” secondary


By: SACK Location: Terrell Texas

Howdy I purchased this from Lockwood Custom Optics about 3.5 years ago. Enjoyed it immensely. Pics are coming of this...

23 Nov 2020

Views: 316


$4,000.00

For Sale 16” R.F.Royce Dall Kirkham Cassegrain mirror set in excellent condition.


By: Toby44 Location: Shelford, Victoria, Australia

Primary mirror is 16” F4 conical mirror. Secondary is 4” spherical mirror with a total focal length of F18. The prima...

24 May 2017

Views: 1002


$4,000.00

For Sale 24" f/4.1 Mirror


By: Steve Dodds Location: Salt Lake city

For sale a 24" f/4.1 Focal Length 99.25" 2" thick fine annealed Pyrex. Enhanced Aluminum (96%) coating. Tested by dou...

21 Sep 2017

Views: 1225

Sold!
$3,950.00

For Sale 1 Meter F/3.3 Pyrex Mirror Blank


By: ioptics Location: Salt Lake City, Utah

Actual Dimensions 38.8" x 1.75" Thickness Corning Pyrex Glass has been slumped and Fine Annealed to Menisicus shape...

16 Oct 2017

Views: 986


$3,200.00

For Sale 22.5" Pyrex Telescope Primary Mirror & Matching 4" Secondary


By: ruachsheavens Location: 60050

This is the end of a dream. Recent diagnosis of issues with 3 discs in my back necessitate this sale. This mirror and...

18 Dec 2019

Views: 516


$3,200.00

For Sale GSO 16inch F8 RC mirror set


By: xuranus Location: South Korea

This is the same mirror of the GSO 16" RC OTA. I have 2 set. (primary mirror + secondary mirror) Never used. Each on...

06 Sep 2020

Views: 605


$3,200.00

For Sale 20-inch Maksutov corrector lens


By: ThomasMM Location: Danville, CA 94526

For Sale 20-inch Maksutov corrector lens. This has been on an going project for some 20-years. Time is up. Requires a...

03 Dec 2017

Views: 1237


$3,200.00

For Sale ZERODUR optical mirror


By: JeanpierreG Location: Belgium

For sale; Two 16,5 inch F1 ZERODUR Mirrors Thickness 4,5 inchorigine Waferstepper Philips factory Eindhoven (Netherl...

26 Aug 2020

Views: 486

Sold!
$3,200.00

For Sale 32" Flat Test Mirror


By: ioptics Location: Salt Lake City

32" Diameter x 2" Thick Autocollimation Test Flat 2" Central Perforation, Coating Good Used Extensively Testing Large...

12 Nov 2020

Views: 228


$3,000.00

For Sale Torus OMI 20" f/5 primary new in box.


By: Edobson20 Location: Datil, NM

Never used still in box Torus primary f/5 Perfect. Have another add with all the rest of the scope plus this mirror....

30 Aug 2017

Views: 947

Sold!
$3,000.00

For Sale 24" f/4.1


By: Steve Dodds Location: Sal;t Lake City

For sale a 24" f/4.1 Focal Length 99.25" 2" thick fine annealed Pyrex. Weight 68lbs. Tested by Double pass autocollim...

08 Mar 2020

Updated: 08 Mar 2020

Views: 688

Offer Pending
$3,000.00

For Sale 24 in Cass


By: wrecker_0 Location: Lagrange Texas

Time for spring cleaning. 24 in full thickness Cass with 17 in Byers drive. Needs a home

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