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18 Dec 2019

Views: 366


$3,200.00

For Sale GSO 16inch F8 RC mirror set


By: xuranus Location: South Korea

This is the same mirror of the GSO 16" RC OTA. I have 2 set. (primary mirror + secondary mirror) Never used. Each on...

09 Mar 2020

Views: 153


$10.00

For Sale Motors & Worms


By: MASILMW Location: US

Worms 24 Pitch Worm $8.00 shipped in CONUS 32 Pitch Worm $10.00 shipped in CONUS 64 Pitch Worm $10.00 shipped in CONU...

30 Jun 2018

Views: 475


$125.00

For Sale HUGE Brass timing gear


By: Sean Cunneen Location: Flossmor Il

Here's the story.... I restored an old Dynascope that had awesome aluminum spoked setting circles, one of which was...

08 May 2017

Views: 409


$0.90

For Sale FRP (Fiberglass Reinforced Plastic)


By: scstusek Location: Greensboro, NC

I have a large sheet of Fiberglass Reinforced Plastic, .09" thickness, that could be used for telescope bearings. I'l...

25 May 2017

Views: 394


$165.00

For Sale Lumicon 2" Easy Guider for Newt/Refract w/3x relay


By: SomeDoSomeDont Location: Michigan 48096

2" Lumicon Easy Guider for Newtonian / Refractor Telescopes - 2.00" #NEG20 Accepts 1.25 eyepiece Lumicon 3x Relay dia...

13 Aug 2018

Views: 922


$800.00

For Sale Large classic telescope mount assembly


By: bob hammond Location: East Hartland, CT

This is a homemade mount that my dad made back in 1960 to control his 6” f10 refractor. It was recently replaced with...

09 Dec 2019

Views: 147


$30.00

For Sale 114 Mirror 4.5" Long Tube Spherical Mirror Set


By: scopehed Location: Meadview, AZ

114 Mirror 4.5" f/8 Long Tube Spherical Mirror with 1" Secondary F=900 At this size and focal ratio a sphere is almos...

23 Jan 2018

Views: 305


n/a

For Sale Scopetote


By: Dennis Steele Location: Palm Desert, CA.

I have a set (2) of Scopetote's from a 10" telescope tube. This would be suitable for an 8" or 10" telescope. Nice co...

05 Apr 2020

Views: 193


$45.00

For Sale 1x6 inch pyrex blank or ?


By: wavefront Location: Colorado

A very nice piece of glass which has no chips or scratches. Nicely beveled. Mechanically flat on both sides. Looks li...

09 May 2020

Views: 167


$20.00

For Sale Alluminum Tube Radius Blocks


By: starbird Location: 95409

This is a set of two aluminum telescope tube radius blocks. Radius curve is for about a 12" tube. Used conditon some...

26 Mar 2020

Views: 372


$2,950.00

For Sale Objective C 110/750 Carl Zeiss Jena


By: lusen Location: Germany Deggendorf

CARL ZEISS JENA Objective Lens C 110/750 COMETFINDER-Objectiv Nr. 62141 it is the last one Cometfinder C 110/750 -...

02 Mar 2019

Views: 358


$130.00

For Sale Two 6" f/4 Astro-Tech/High-Point Mirrors


By: Tucker512 Location: Tucson, AZ

I have two 6" f/4 mirrors I pulled out of telescopes that I modified for my own homemade mirrors. Both are good quali...

01 Nov 2017

Updated: 05 Nov 2017

Views: 991

UPDATED
n/a

For Sale REDUCED 16"F6 pyrex mirror and diagonal read


By: bob midiri Location: se

Last reduction $925 shipped CONUSA, or $875 picked up.REDUCED: High quality This is pyrex, 16"F6 mirror, with 2.5" di...

29 Nov 2019

Views: 166


$15.00

For Sale 3" 76mm f/9 Spherical Mirror Set with 3/4" Secondary


By: scopehed Location: Meadview, AZ

Minor coating blem - won't affect the view. Primary is 7/16" wide. Price includes USA shipping. We accept all major c...

05 Apr 2020

Views: 232


$10.00

For Sale 12 1/8" Diameter Trunnions (altitude bearings)


By: Barry Peckham Location: Oahu

Leftover trunnions from the days of LITEBOX Telescopes. 3/4" lumber-core plywood with Philippine mahogany faces and E...

11 Jan 2020

Updated: 12 Jan 2020

Views: 276

UPDATED
$700.00

For Sale Ceravolo Ross Null Lens S/N 4


By: kur3tking Location: Austin, TX.

Hello, I am reluctantly wishing to part with my Ross Null lens made by Peter Ceravolo. It is serial number 4. It is m...

08 Jul 2019

Views: 176


$30.00

For Sale Canon 450D Sensor


By: moxican Location: ON

It came out of an older 450D of mine. No scratches. $30 or best offer. Will ship at buyer's cost

23 Mar 2020

Views: 44


$50.00

For Sale 3"X 2" secondary


By: joecomet Location: Tallahassee Fl

3"major axis X 2" minor diagonal secondary. In Novak cell with no back plate or bolt. Mirror surface clear and coatin...

23 May 2020

Updated: Today, 09:47 AM

Views: 276

UPDATED
$95.00

For Sale Large aluminum plate


By: wavefront Location: Colorado

You could use this for a turntable for your optical machine project. It's 5/8" thick by 22-1/2+ inches in diameter. N...

07 May 2019

Views: 139


$20.00

For Sale Optical Craftsman 50mm ID. Finder Scope Rings


By: starbird Location: 95409

This is a set of two optical craftsman 50mm finder scope rings. Nice condition with nylon adjustment screws. Price...

14 Jun 2019

Views: 327


$20.00

For Sale Edmund Scientific 4.25" F4 Astroscan Mirror


By: starbird Location: 95409

This is an edmund 4.25" F4 astroscan mirror. It is the made in Japan model from early in the production. Coating is a...

27 Sep 2018

Views: 683


$1,000.00

For Sale 16" Fused Silica Optical Flat


By: ioptics Location: Salt Lake City

16" x 3" Thickness Fused Silica Optical Flat Shipping CONUS add $150.00

08 Feb 2019

Updated: 12 Feb 2019

Views: 610

UPDATED
$80.00

For Sale ES dual speed crayford focuser


By: Matt7101cars Location: PA

I have fore sale a nice dual speed focuser off my 8 inch Newtonian astrograph. Its made by Explore Scientific. Price...

08 Mar 2018

Updated: 10 Mar 2018

Views: 469

UPDATED
$1.00

For Sale Astrosystems 2.14" Secondary Holder and Dewguard


By: CQDDEMGY Location: Detroit, MI

For sale is an Astrosystems 2.14" Secondary Holder, DG-1 Dew Guard, and Remote Installation Kit for the Dew Guard.All...

15 Dec 2019

Views: 171


$13.00

For Sale 60mm x 700mm Achromat


By: MASILMW Location: US

60mm x 700mm Achromat The lens is air-spaced and is MgF2 coated. $13 shipped in CONUS PP, M.O., Checks etc.

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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