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21 Sep 2018

Views: 782


$1,600.00

For Sale 24" Pyrex Optical Flat


By: ioptics Location: Salt Lake City

24" x 2" Thickness Pyrex Flat Accuracy Unknown May be used for Mirror Blank Good Condition, very minor chips or din...

25 Feb 2018

Updated: 27 Mar 2018

Views: 790

Sold!
$1,500.00

For Sale 17.5 in f/4.5 Lockwood Mirror, Final Price Reduction


By: KGE Location: Connecticut

This started out in 1985 as a Coulter mirror. It was completely refigured by Lockwood optics in 2015.. The mirror wo...

02 Sep 2017

Views: 1026

Sold!
$1,500.00

For Sale 12" Zambuto Primary Mirror


By: Allan Wade Location: Dallas, TX

I purchased this mirror from Carl Zambuto in 2014. If you are in the market for a primary mirror you will know the re...

23 Jun 2018

Views: 777


$1,500.00

For Sale 10.2" f/15 Off Axis Mirror


By: Steve Dodds Location: Salt Lake City

10.2" diameter off axis parabola. This is the heart of the ultimate planetary telescope. 10" f/15 unobstructed folded...

29 Jan 2019

Updated: 30 Jan 2019

Views: 717

Sold!
$1,500.00

For Sale 14.7" f/4.2 Fused Silica Primary Mirror - 1/18th Wave PVW


By: mark cowan Location: salem OR

This is a fully finished, uncoated paraboloidal mirror on fused silica (quartz) substrate with 0.77” edge thickness,...

13 Mar 2017

Views: 1197

Sold!
$1,500.00

For Sale Never Used 17.5" Coulter Mirror and 4.25" Secondary Mirror Set


By: madeline wiest Location: Pleasanton, CA

Never Used 17.5" Coulter Mirror and 4.25" Secondary Mirror set originally purchased in 1981 and was never taken out o...

12 Aug 2019

Views: 291

Sold!
$1,400.00

For Sale Cer-Vit Mirror Blank, 17.9 inches by 1.50 inches Thick


By: PeteDCard81 Location: Minneapolis, MN area

Cer-Vit mirror blank, 17.9 inches by 1.50 inches thick, almost 18 inches in diameter. Blanchard ground flat both surf...

24 Oct 2020

Updated: 24 Oct 2020

Views: 274

UPDATED
$1,375.00

For Sale REDUCED - Parks f3.5 12.5" Primary, Strehl = .917 and Smooth


By: mcwolfson Location: Ottawa, Canada

This is a full thickness Parks 45th Anniversary primary mirror in excellent condition. Recently recoated and just now...

24 Sep 2019

Updated: 01 Oct 2019

Views: 734

UPDATED
$1,350.00

For Sale 2 new mirrors in stock for sale


By: John Lightholder Location: California

I've two new mirrors in stock just back from coating for immediate delivery. Send an email through CN here or to my...

14 Jul 2017

Views: 885

Sold!
$1,300.00

For Sale 18" f/4.5 Telescope Mirror


By: Steve Dodds Location: Salt Lake City

For sale a 18" f/4.5 Focal length 81.25" 2" thick precision annealed Pyrex. Protected aluminum coating. Tested by dou...

24 May 2017

Views: 745

Sold!
$1,300.00

For Sale 16" F4.5 OWL refigured mirror


By: Joe G Location: Los Angeles

I have a 16" F4.5 mirror for sale. This was a Meade Lightbridge GSO mirror refigured by Optic Wave Labs to a 0.96 St...

18 Mar 2019

Views: 458

Sold!
$1,250.00

For Sale 14.7" quartz mirror + accessories


By: visuallearner Location: CO

Bigger project than expected, Really don't have the time to complete this awesome ATM. Here are the goods: 14.7" f/...

27 May 2018

Views: 534

Sold!
$1,250.00

For Sale Unused Swayze refigured 14.25-inch f4.5 mirror


By: smwiele Location: Tucson

This mirror started as an f6 I made from a 1.5 inch thick pyrex blank obtained from Newport Glass about a dozen years...

11 Nov 2020

Views: 304


$1,250.00

New Price - Parks f3.5 12.5" Primary, Strehl = .917 and Smooth


By: mcwolfson Location: Ottawa, Canada

This is a full thickness Parks 45th Anniversary primary mirror in excellent condition. Recently recoated and just now...

19 Jul 2018

Updated: 22 Jul 2018

Views: 666

Sold!
$1,250.00

For Sale 17" Astrosital Fast Telescope Mirror FL 12.1"


By: ioptics Location: Salt Lake City

New Aerospace Surplus Uncoated Mirror (Actual Dimensions 428mm x 60mm Edge Th 30mm Center TH) 14.8" Clear Aperture Ba...

22 Apr 2017

Views: 686

Sold!
$1,200.00

For Sale 16" f/4.5 primary with report


By: m a r k o Location: Croatia, EU

I'm parting with my wonderful 16" f/4.5 The blank is 403mm Borosilicate from Schott in 25mm thickness and it cools qu...

03 May 2018

Views: 619

Sold!
$1,200.00

For Sale Meade 16” Starfinder Primary/ Swayze Refigured


By: dougm Location: Philadelphia

Newly Swayze refigured 16” Meade Starfinder primary for sale with Spectrum Standard coating. Moving up to an 18” dob...

27 Oct 2019

Views: 522

Sold!
$1,200.00

For Sale 18" Autocollimation Test Flat Mirror


By: ioptics Location: Salt Lake City

!8" Diameter x 3.5" Thick Davidson Optronics Flat Pyrex Mirror Removed from Davidson Collimator 1/20 wave accuracy Go...

20 Nov 2018

Views: 512


$1,200.00

For Sale 10.2" f/15 Off axis telescope mirror


By: Steve Dodds Location: Salt Lake City

For sale the ultimate planetary telescope mirror. A 10.2” f/15 unobstructed off axis telescope mirror. Off axis dista...

11 Jun 2018

Updated: 20 Jun 2018

Views: 689

Sold!
$1,200.00

For Sale 16 " F 4.5 mirror set


By: jeff675 Location: Cottage Grove, OR 97424

This is a mirror set of a 16" main mirror and a 3.1 secondary mirror that was put together by Terry Ostahowski in Cal...

04 Aug 2018

Views: 380

Sold!
$1,200.00

For Sale 10.2 "f/15 Unobstructed off-axis mirror


By: Steve Dodds Location: Salt Lake City

For sale the ultimate planetary telescope mirror. A 10.2” f/15 unobstructed off axis telescope mirror. Off axis dist...

08 Oct 2019

Views: 358

Sold!
$1,200.00

For Sale ES 152mm f/8 ED Triplet Lens & Cell


By: MASILMW Location: US

ES 152mm f/8 ED Triplet Lens & Cell The lenses are Fully Multi-Coated. Comes with the front half of the push/pull...

15 May 2020

Views: 165

Found!
$1,200.00

Wanted 20-22" f/4 to f/5.5 Primary Mirror


By: Augustus Location: Connecticut

I'm thinking about building another large scope - unfortunately due to budget restrictions being a freshly-graduated...

26 Dec 2017

Views: 491

Sold!
$1,150.00

For Sale 20" Pyrex blank + matching channeled glass tool


By: Scott Milligan Location: Hubbardston MA

Telescope mirror blank, Pyrex, Fine annealed at United Lens Company. 20" diameter X 1 3/8" thick, with a 164" concave...

31 Dec 2017

Views: 395

Sold!
$1,150.00

For Sale Pyrex mirror blank, 20" dia. X 2" thick, F/5 curve pre-generated


By: Scott Milligan Location: Hubbardston MA

Pyrex mirror blank, 20" dia. X 2" thick, F/5 (200" ROC) concave curve pre-generated, other side generated flat. Edge...

CNers have asked about a donation box for Cloudy Nights over the years, so here you go. Donation is not required by any means, so please enjoy your stay.


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