Diagonals

30 Nov 2020
Views: 290
$2,200.00
For Sale Zeiss Q1 130x100
I have decided to sell one of my two giant Zeiss mirror diagonals. It has not been used and its optical and mechanic...

16 Mar 2019
Views: 502
$569.00
For Sale Zeiss M44 Prism diagonal updated with Baader Planetarium adapters
Zeiss M44 Prism diagonal updated with Baader Planetarirum adaptersThe best prism diagonal ever made!Condition: MintO...

03 Nov 2018
Updated: 10 Dec 2018
Views: 475
$375.00
For Sale Van Slyke Versa Slider
Good condition Van Slyke versa slider. 375.00 shipped. This does not look like it has had much use and I was told by...

05 Jan 2019
Updated: 05 Jan 2019
Views: 502
$350.00
For Sale For sale, Takahashi 2" diagonals
For sale Takahashi 2inch diagonals. It's almost mint condition. Sale it USD350

10 Oct 2018
Updated: 10 Oct 2018
Views: 601
$329.00
For Sale Vintage 2" Giant Celestron Diagonal for C-11 & C-14
I have a giant Celestron Diagonal for Celestron Orange and Black tube, vintage C-14's and C-11's. The eyepiece and 1...

30 Nov 2020
Views: 188
$299.00
For Sale Giant potential Diagonal 90mm entrance aperture
This is from an American lab optical assembly. It is a diagonal mirror. The mirror has some dust on it from sitting,...

26 Sep 2020
Views: 177
$280.00
For Sale 3" Explore Scientific Diagonal
As new 3" Explore Scientific diagonal, with 3" to 2" adapter. $280 includes Paypal and CONUS postage.

15 Aug 2018
Views: 356
$250.00
For Sale 2 inch elliptical mirror diagonal C8/11/14
Fits all 3 scopes. Elliptical mirror has collimating adjustment. Tested perfect by telescope expert. Made for Celestr...

18 Mar 2019
Views: 384
$225.00
For Sale Unitron Unihex with Barlow and Box
I found this today in my stash of stuff as I was going through my crazy bunch of Astro Gear. I didn't even know I had...

02 Apr 2017
Views: 1090
$220.00
For Sale Antique star diagonal prism (Zeiss?) 19th century
Antique star diagonal prism (Zeiss?) 19th centuryIt could be a Zeiss star diagonal prism. I'm not sure. It's unsign...

17 Jan 2021
Views: 118
$200.00
For Sale William Optics 2" Durabright RotoLock Diagonal
William Optics 2" Durabright RotoLock Diagonal - D-DIG2D-ROTO-A2 This William Optics 90-degree diagonal is machined o...

03 Jan 2021
Views: 123
$199.00
For Sale William Optics 2" Correct Image 45-degree Diagonal
William Optics 2" Correct Image Diagonal with box, caps and 1.25 adapter. free shipping in CONUS

23 Nov 2019
Views: 356
$180.00
For Sale Williams Optics 2 inch diagonal
2 inch Williams Optics diagonal dielectric mirror for schmidt-cassegrain telescope.

25 Mar 2020
Views: 248
$175.00
For Sale Vernonscope 2" 45° Amici Prism
Body shows some wear but the prisms are clean. You might see a dust speck or two in the photos but that is all. Free...

02 Apr 2017
Views: 587
$165.00
For Sale Antique star diagonal prism, 19th century (small)
Antique star diagonal prism, 19th century (small)Small brass star diagonal prism in very good condition. No idea of...

Yesterday, 03:50 PM
Views: 137
$165.00
For Sale 2" Tele Vue Everbrite Diagonal #SDP-1002
2" Tele Vue SDP-1002 "Everbrite" mirror diagonal with 'hi-hat' 1.25" adapter, caps and box as shown. Note the 'Everb...

22 Nov 2020
Views: 290
$150.00
For Sale APM 2” Prism Diagonal
Good evening, I have a used APM 2” prism diagonal. The prism is in good condition, very crisp and clear. The body ha...

15 Nov 2020
Views: 179
$150.00
For Sale Explore Scientific CF 2" Diagonal - Brand New
Brand new carbon fiber 99% Reflective 2" diagonal included with my ES ED102-FCD100. Never used - only took it out of...

17 Jan 2021
Views: 131
$140.00
For Sale William Optics 2" Dura Bright Dielectric SCT Diagonal
William Optics 2" Dura Bright Dielectric SCT Diagonal - D-DIG2D-C-DB-SCT • Dielectric coating allows 99% reflectivi...

Yesterday, 02:51 PM
Views: 88
$135.00
For Sale Celestron 2" SCT Starbright XLT Diagonal, with Case
Excellent 2" diagonal with threaded ring for SCT rear cell and 1.25" adapter. Celestron model #93527. Includes the r...

30 Nov 2020
Views: 149
$130.00
For Sale Astro Professional 2" SCT Erecting Prism
Up for selling one Astro Professional 2" SCT Erecting Prism. It is in very good conditions,new in fact as I never us...

23 Feb 2019
Views: 387
$125.00
For Sale Tele Vue 2" Mirror Star Diagonal with 1.25" Adapter
This is a tele vue 2" mirror star diagonal with a 1.25" eyepiece adapter. Very nice solid diagonal almost unused been...

23 Feb 2019
Views: 370
$125.00
For Sale Tele Vue 2" Diagonal (1999) w/ New 1.25" adapter
This came with a Tele Vue 101 that I purchased recently from Adorama. The serial number on the scope is #1207, but I...

28 Nov 2019
Views: 334
$125.00
For Sale Tele vue 90 degree Everbrite Star Diagonal 1.25
A few cosmetic blems on body but the mirror is in great shape. No marks of any kind. free shi[pping in the continent...

20 Oct 2017
Views: 457
$125.00
For Sale Questar Porro prism
Questar porroprism with some chips on edge although don't think it will interfere with very narrow cone of light. Sel...