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14 Nov 2019

Views: 38


$10.00

For Sale Secondary Holder


in Diagonals by MASILMW

Secondary Holder The secondary stalk fits the Edmund, Yeagers, University Optics etc. focusers. $10.00 shipped in CON...

11 Nov 2019

Views: 39


$25.00

For Sale 1980's Terrestrial Inverting Prism for Telescopes .965 diameter


in Diagonals by rcobservatory

This is a nice 1980's .965 diameter terrestrial inverter for telescopes. This lets you observe land objects right sid...

27 Nov 2019

Views: 59


$24.00

For Sale Edmund Scientific 2.62" Minor Axis Pyrex Elliptical Diagonal


in Diagonals by starbird

This is an edmund 2.62" minor axis pyrex elliptical diagonal flat mirror. It has a good size chip in the bottom edge...

27 Nov 2019

Views: 69


$20.00

For Sale Prism Star Diagonal .965" Nihon Seiko Japan


in Diagonals by starbird

This is a .965" prism star diagonal. I got these years ago from University Optics. The diagonal is made in Japan by N...

26 Nov 2019

Views: 82


$80.00

For Sale 2" Pyrex Elliptical Diagonal Mirror


in Diagonals by Peter Nance

Brand new 2.00" minor axis telescope diagonal mirror. Flatness is 1/12th wave. Coated with aluminum and protected wit...

17 Aug 2019

Views: 82


$23.00

For Sale 1.25” 45 degree prism diagonal


in Diagonals by rfic1

Unknown maker but decent build quality. Excellent condition. $23ppd

03 Oct 2019

Views: 93


$95.00

For Sale Coulter 4.25" Minor Axis Elliptical Diagonal Flat Pyrex


in Diagonals by starbird

This is a vintage coulter 4.25" minor axis pyrex elliptical diagonal flat. Mounted on a 45 degree bracket and blacken...

12 Nov 2019

Updated: 14 Nov 2019

Views: 98

UPDATED
$20.00

For Sale Inexpensive Mirror Diagonal


in Diagonals by dougm

I’ve had these in a baggie from prior purchases, never used them. These are both 1-1/4 inch mirror diagonals, the fir...

01 Nov 2019

Views: 99


$30.00

For Sale Orion 08787 Erect Image 1.25" 90 deg Star Diagonal JAPAN


in Diagonals by scopehed

Good condition for its age - has some marks on the finish and a very small coating blem on the edge that won't affect...

23 Nov 2019

Views: 99


$180.00

For Sale Williams Optics 2 inch diagonal


in Diagonals by Unclehlh

2 inch Williams Optics diagonal dielectric mirror for schmidt-cassegrain telescope.

11 Nov 2019

Views: 107


$20.00

For Sale 2 Celestron 1 1/4" Diagonals to Choose from


in Diagonals by scopehed

2 Celestron 1 1/4" Diagonals to Choose from 1) Celestron 1 1/4" 90 degree Prism Star Diagonal Model # 94115-A Excell...

22 Nov 2019

Views: 108


$155.00

For Sale Stellarvue 2" Quartz Dielectric Star Diagonal - D1040Q


in Diagonals by AnhTuan

For sale is a very good condition Stellarvue 2" Quartz Dielectric diagonal with 1.25" eyepiece adapter. One of the th...

28 May 2019

Updated: 19 Aug 2019

Views: 108

UPDATED
$50.00

For Sale IDAI.LTD 3x relay diagonal


in Diagonals by Jeff S.

3x relay diagonal, sold by Idai.ltd of New York. Diagonal is very good cosmetic conditions and the optics are free of...

04 Nov 2019

Views: 110


$100.00

For Sale Celestron 2" SCT XLT Diagonal


in Diagonals by spames

Celestron 2" SCT XLT Diagonal Used it a few times some dust sorry no caps $100.00 plus Paypal fees Free Shipping

22 Nov 2019

Updated: Yesterday, 03:23 PM

Views: 111

UPDATED
$50.00

For Sale Celestron 2" Mirror Star Diagonal #93519


in Diagonals by lukenash707

Fairly good condition with a few small scratches on the aluminum, mirror is in good condition.

02 Nov 2019

Updated: 03 Nov 2019

Views: 112

UPDATED
$75.00

For Sale Opt 2” mirror diagonal w 1.25” adapter *reduced


in Diagonals by Rayk47

Excellent condition opt 2" mirror diagonal , with 1.25" adapter . couple marks on the barrel. $75 shipped lower state...

05 Nov 2018

Views: 113


$20.00

For Sale .965" Poro Prism correct image adapter


in Diagonals by scopehed

.965" Poro Prism this gives a straight through correct image with your refractor or sct uses .965" eyepieces and goes...

05 Dec 2019

Views: 115


$90.00

For Sale Celestron 2" MIRROR DIAGONAL WITH XLT COATINGS


in Diagonals by it_frog

Used vary little in vary good condition,no scratches PayPal only please I will pay shipping Thanks, BobW

23 Aug 2019

Views: 117


$20.00

For Sale Vintage Japanese .965" Prism Star Diagonal


in Diagonals by starbird

This is 60's made in Japan .965" prism star diagonal. The more rare curved back deign provided with certain Japanese...

15 Apr 2019

Views: 120


$35.00

For Sale Orion 1.25" 45 Degree Erect Image Diagonal


in Diagonals by scopehed

Orion 1.25" 45 Degree Erect Image Diagonal Very Excellent Condition Like New in Box $35.00 Free Shipping in USA

09 Aug 2019

Views: 122


$30.00

For Sale Vintage Celestron 1.25" Porro Prism Diagonal - Japan


in Diagonals by scopehed

Excellent condition for its age. Has a few marks on the barrel from normal use. Comes with both caps. Price includes...

11 Jan 2019

Views: 123


$25.00

For Sale Meade 913 roof prism .965" for sct telescopes wuth 1.25" adapter


in Diagonals by scopehed

Meade 913 Roof Prism. This screws onto the standard SCT thread on the back of tubes. you can use this to make your s...

10 Sep 2019

Views: 123


$15.00

For Sale Vintage All Metal .965 Prism Diagonal


in Diagonals by scopehed

Vintage All Metal .965 Prism Diagonal probably Japanese but not marked as such. Very good condition $15.00 Free Ship...

16 May 2019

Updated: 14 Jun 2019

Views: 123

UPDATED
$32.00

For Sale New Celestron 45 degree erecting prism 1.25"


in Diagonals by James Bielaga

I have one new #94112 45 degree prism 1.25" diagonal. This gives you right side up image for daytime viewing. Buyer...

22 Apr 2019

Views: 124


$25.00

For Sale Correct Image NX4 45 Degree Diagonal for etx and c90


in Diagonals by scopehed

932 style screw on Correct Image NX4 45 Degree This Diagonal Fits Modern Celestron C90's Includes Cap and Plug Very...

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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