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18 Mar 2017

Views: 297


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: 370


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: 397


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...

05 May 2017

Views: 408


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: 340


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...

01 Jul 2017

Updated: 01 Jul 2017

Views: 442


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: 325


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...

12 Aug 2017

Updated: 22 Sep 2017

Views: 209


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: 360


For Sale Celestron 1.25" prism diagonal

in Diagonals by JakeJ

Very sharp optics.

20 Oct 2017

Views: 283


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: 404


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: 261


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 Nov 2017

Updated: 20 Dec 2017

Views: 333


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: 229


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: 335


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: 259


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...

06 Dec 2017

Views: 331


For Sale Celestron 94115-A star diagonal with SCT adapter...

in Diagonals by nicoyenny

I have this nice 1.25" star diagonal attached to a really nice SCT visual back. Free shipping CONUS. Thanks.

12 Dec 2017

Views: 411


For Sale Meade JAPAN 1.25" Diagonal - Multi Coated

in Diagonals by Stan Lopata

Meade JAPAN 1.25" Diagonal - Multi Coated. This is a vintage 1980s Meade diagonal. JAPAN quality and glass in this...

27 Dec 2017

Updated: 27 Dec 2017

Views: 293


For Sale Celestron 2 inch diagonal 93519

in Diagonals by CGAstronomer

Celestron 2 inch diagonal 93519. The mirror is clean and in great condition. A few minor scratches on the outside of...

15 Jan 2018

Updated: 19 Mar 2018

Views: 520


For Sale Everbrite 2 in diagonal

in Diagonals by tgermaine

Very good condition with a few insertion marks. mirror looks to be in excellent condition. No caps.

27 Jan 2018

Views: 255


For Sale Questar porro prism

in Diagonals by murphb

Old classic selling cheap due to chips on prism. Appear to be enough on outside of cone of light not to interfere wi...

28 Jan 2018

Updated: 28 Jan 2018

Views: 335


For Sale Meade SCT visual back and 90 degree 1.25 inch diagonal

in Diagonals by cheesehead

Visual back looks new and the diagonal looks barely used. both for $30 or separate for $20 each shipping included. pa...

22 Feb 2018

Views: 212


For Sale .965 mirror diagonal

in Diagonals by cosmic wind

.965 mirror Diagonal--Plastic body. Mirror is clean and clear...no scratches. $13 includes shipping to CONUS. PayPal...

03 Mar 2018

Views: 265


For Sale Celestron 2" StarBright XLT Diagonal

in Diagonals by charlie 14.5

Celestron 2” Mirror Diagonal Like new, used only once and decided the 2” eyepieces were too heavy for this scope. It...

09 Mar 2018

Views: 193


For Sale 1.25" Meade 90 deg. Mirror Diagonal - Needs Mirror Coated

in Diagonals by Roger64

The mirror needs replacing or coating. Shipping US only included.

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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