Diagonals

18 Mar 2017
Views: 458
$30.00
For Sale .965 Image Erector
Typical unbranded .965" image erector with caps for terrestrial use. Probably out of an old wood-boxed small refracto...

02 Apr 2017
Views: 1103
$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...

02 Apr 2017
Views: 597
$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...

05 May 2017
Views: 671
$115.00
For Sale Celestron 2 inch diagonal
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: 490
$25.00
For Sale 1.25" no name diagonals
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: 02 Nov 2020
Views: 693
$100.00
For Sale Unitron turret
Classic Unitron eyepiece turret.

03 Jul 2017
Views: 481
$12.00
For Sale GSO 1.25" diagonal
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: 373
$60.00
For Sale Newtonian secondary
3.25" X 4". Has small scratch that does not affect images, otherwise in perfect condition. Asking $60 + shipping.+ Pl...

20 Sep 2017
Views: 518
$20.00
For Sale Celestron 1.25" prism diagonal
Very sharp optics.

20 Oct 2017
Views: 466
$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...

02 Nov 2017
Updated: 13 Jan 2018
Views: 589
$32.00
For Sale PRICE REDUCTION Celestron Star Diagonal 1.25 inch
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: 396
$65.00
For Sale Vintage Vixen 1-1/4" Mirror Diagonal
Vixen mirror diagonal with cast alum body and caps. $65 shipped

13 Nov 2017
Views: 398
$59.00
For Sale Secondary mirror w bar mount
Secondary elliptical mirror from odyssey 13.1 inch short tube dobsonian scope for sale. Mirror is 4 inches long and...

18 Nov 2017
Views: 531
$120.00
For Sale Diagonals and Camera adapters
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: 406
$22.00
For Sale 45 and 90 degree 1.25" diagonals
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: 504
$50.00
For Sale Celestron 94115-A star diagonal with SCT adapter...
I have this nice 1.25" star diagonal attached to a really nice SCT visual back. Free shipping CONUS. Thanks.

15 Jan 2018
Updated: 19 Mar 2018
Views: 722
$110.00
For Sale Everbrite 2 in diagonal
Very good condition with a few insertion marks. mirror looks to be in excellent condition. No caps.

27 Jan 2018
Views: 418
$90.00
For Sale Questar porro prism
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: 501
$30.00
For Sale Meade SCT visual back and 90 degree 1.25 inch diagonal
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: 351
$13.00
For Sale .965 mirror diagonal
.965 mirror Diagonal--Plastic body. Mirror is clean and clear...no scratches. $13 includes shipping to CONUS. PayPal...

03 Mar 2018
Views: 441
$115.00
For Sale Celestron 2" StarBright XLT Diagonal
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: 362
$12.50
For Sale 1.25" Meade 90 deg. Mirror Diagonal - Needs Mirror Coated
The mirror needs replacing or coating. Shipping US only included.

19 Mar 2018
Updated: 26 Mar 2018
Views: 648
$95.00
For Sale 2" Meade 32MM 60* Super wide Angle 4000 series eyepiece
2" 32MM Meade Series 4000 5 Element Plossl made in Japan I bought this a few years ago and enjoyed it much now I am m...

25 Mar 2018
Updated: 26 Apr 2018
Views: 852
$55.00
For Sale Explore Scientific 2" Dielectric-Coated Telescope Diagonal Mirror
$55 Price includes USA shipping and paypal fee!! This is a used diagonal still in good shape with a good coating on t...

13 Apr 2018
Views: 357
$18.00
For Sale 1.25" 45 Deg. Erecting Diagonal
1.25" 45 Deg. Erecting Diagonal - that's on the original box. No information on the diagonal at all - it's unmarked....