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18 Mar 2017

Views: 263


$30.00

For Sale .965 Image Erector


in Diagonals by Tom Duncan

Typical unbranded .965" image erector with caps for terrestrial use. Probably out of an old wood-boxed small refracto...

02 Apr 2017

Views: 326


$220.00

For Sale Antique star diagonal prism (Zeiss?) 19th century


in Diagonals by xavier

Antique star diagonal prism (Zeiss?) 19th centuryIt could be a Zeiss star diagonal prism. I'm not sure. It's unsign...

02 Apr 2017

Views: 359


$165.00

For Sale Antique star diagonal prism, 19th century (small)


in Diagonals by xavier

Antique star diagonal prism, 19th century (small)Small brass star diagonal prism in very good condition. No idea of...

27 Apr 2017

Views: 379


$24.00

For Sale Vixen Straight Through Prism Erecting System 1.25"


in Diagonals by starbird

This is a Vixen made in Japan 1.25" Prism Erecting System for sct or refractor telescope. Excellent Japanese item in...

05 May 2017

Views: 366


$115.00

For Sale Celestron 2 inch diagonal


in Diagonals by glennshiller

For sale my Celestron 2 inch diagonal. I used only a couple of times. I no longer have a C-11. So it is not needed...

12 May 2017

Views: 305


$25.00

For Sale 1.25" no name diagonals


in Diagonals by tag1260

I have two 1.25" diagonals to sell. One is a very nice mirror but I don't believe it's dielectric. The other one is...

22 May 2017

Views: 288


$23.00

For Sale Celestron Vintage 1.25" Prism Erecting System


in Diagonals by starbird

This is a celestron vintage C8 orange tube era 1.25" erecting prism system. Nice original made in Japan by vixen cele...

01 Jul 2017

Updated: 01 Jul 2017

Views: 407

UPDATED
$170.00

For Sale Unitron turret


in Diagonals by David631Young

Classic Unitron eyepiece turret. From the collection of the Astronomical Society of Kansas City

03 Jul 2017

Views: 295


$12.00

For Sale GSO 1.25" diagonal


in Diagonals by fungus57

I have a GSO 1.25" mirror diagonal. Optically it's fine but not the greatest mechanical quality, mirror was not align...

21 Mar 2019

Updated: Today, 09:58 AM

Views: 118

UPDATED
$50.00

For Sale William Optics 2" Mirror Diagonal (Reduced)


in Diagonals by daquad

William Optics 2" Mirror Diagonal. Not dielectric, but is enhanced aluminum with 96% reflectivity. Excellent conditio...

12 Aug 2017

Updated: 22 Sep 2017

Views: 186

UPDATED
$60.00

For Sale Newtonian secondary


in Diagonals by Bill Gnirrep

3.25" X 4". Has small scratch that does not affect images, otherwise in perfect condition. Asking $60 + shipping.+ Pl...

20 Sep 2017

Views: 324


$20.00

For Sale Celestron 1.25" prism diagonal


in Diagonals by JakeJ

Very sharp optics.

24 Sep 2017

Views: 369


$35.00

For Sale Meade 1.25" Off Axis Guider Diagonal made in Japan


in Diagonals by starbird

This is a meade 1.25" off axis guider diagonal astrophoto guiding accessory. Has the little mirror inside for locati...

20 Oct 2017

Views: 227


$125.00

For Sale Questar Porro prism


in Diagonals by murphb

Questar porroprism with some chips on edge although don't think it will interfere with very narrow cone of light. Sel...

02 Nov 2017

Updated: 13 Jan 2018

Views: 344

UPDATED
$32.00

For Sale PRICE REDUCTION Celestron Star Diagonal 1.25 inch


in Diagonals by Andrew5465

Ive Recently have gotten a celestron avx 6 inch Newtonian telescope but then I saw that Newtonians don’t used diagona...

07 Nov 2017

Views: 562


$230.00

For Sale Baader 2" clicklock diagonal


in Diagonals by Phucdang

I have for sale a Baader 2" clicklock diagonal in very good condition (just some minor marks of focuser set screw on...

07 Nov 2017

Views: 222


$65.00

For Sale Vintage Vixen 1-1/4" Mirror Diagonal


in Diagonals by Lynnblac

Vixen mirror diagonal with cast alum body and caps. $65 shipped

11 Dec 2018

Updated: 20 Feb 2019

Views: 155

UPDATED
$55.00

For Sale TeleVue 1.25" Mirror / diagonal Model #SDQ-0010


in Diagonals by Scopeman61

For sale is a TeleVue 1.25" mirror diagonal # SDQ-0010 no box but has original dust caps. had minor scratches on barr...

05 Jan 2019

Updated: 05 Jan 2019

Views: 221

UPDATED
$350.00

For Sale For sale, Takahashi 2" diagonals


in Diagonals by jongmin

For sale Takahashi 2inch diagonals. It's almost mint condition. Sale it USD350

11 Nov 2017

Updated: 20 Dec 2017

Views: 288

UPDATED
$20.00

For Sale 90 Degree Diagonal Prism 1-1/4"


in Diagonals by DennisR

The name says it all - Made in China Came with Celestron OTA, but not labeled Celestron? Celestron Box? Used in the...

13 Nov 2017

Views: 192


$59.00

For Sale Secondary mirror w bar mount


in Diagonals by Pjmarkie

Secondary elliptical mirror from odyssey 13.1 inch short tube dobsonian scope for sale. Mirror is 4 inches long and...

18 Nov 2017

Views: 300


$120.00

For Sale Diagonals and Camera adapters


in Diagonals by Irish43

Optica solar diagonal and camera (1.25 to T-thread) adapter system Celestron 1.25 inch star diagonal, Optica erect i...

21 Nov 2017

Views: 227


$22.00

For Sale 45 and 90 degree 1.25" diagonals


in Diagonals by Emeryh

Both have plastic bodies with set screws and spotless mirrors.The 45 degree is an erect image diagonal. The 90 degree...

22 Nov 2017

Views: 532


$500.00

For Sale Ultra Rare Sears Rotary Eyepiece Holder with Eyepieces


in Diagonals by starbird

This is a vintage sears rotary eyepiece holder. Sold in the very early seventies with the sears 90mm refractor teles...

18 Jun 2018

Updated: 25 Jun 2018

Views: 213

UPDATED
$48.00

For Sale 2" Orion Refractor Telescope Mirror Diagonal


in Diagonals by gmyrah

2" Orion Refractor Telescope Mirror Diagonal. Good condition, some minor dust on the mirror and barrel marks from set...

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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