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Yesterday, 05:50 PM

Views: 94


$25.00

For Sale Vintage 8" Pyrex Blank Edge Flaw/Usable $25


By: J A VOLK Location: Flagstaff, AZ

Vintage 8" Pyrex Blank from United Lens, 1.25" thick. Was used for a pitch lap, which I removed! Flat back and fine g...

Yesterday, 04:13 PM

Updated: Yesterday, 04:15 PM

Views: 86

UPDATED
$45.00

For Sale 8" Vintage Pyrex Disc From ATM Project $45


By: J A VOLK Location: Flagstaff, AZ

Another remnant from a 1970's advanced ATM shop. This 1.36" thick Pyrex disc was used a tiled tool for an 8" SCT ATM...

18 Sep 2020

Updated: 18 Sep 2020

Views: 116

UPDATED
n/a

Wanted secondary refigure


By: greenglass Location: ontario canada

would anyone fix my 2.25" newtonian secondary? It's pyrex. I messed it up in 2009 polishing off the tarnished silver...

18 Sep 2020

Updated: Yesterday, 07:48 AM

Views: 81

UPDATED
$25.00

For Sale Novak Spider for 6 3/4"-6 15/16" ID Tube


By: stgetI Location: NJ

I have a Novak Research Quaility Spider for a 6 3/4"-6 15/16" ID tube (7" max OD). Asking $25 shipped CONUS. No Payp...

17 Sep 2020

Views: 85


$40.00

For Sale 4" f/11.27 Primary Mirror


By: MASILMW Location: US

4" f/11.27 Primary Mirror The focal length is 1150mm. The mirror is made of Pyrex. and is probably spherical but, tha...

17 Sep 2020

Views: 67


$28.00

For Sale 70mm Air-Spaced Achromat in Metal Cell


By: MASILMW Location: US

70mm Air-Spaced Achromat in Metal Cell The focal length is 315mm f/4.5. Made by Carton Optical in Japan. The lenses a...

14 Sep 2020

Views: 62


$1.00

Wanted Tasco 7TE Objective Cell


By: Uncle Milt Location: Live Oak, FL

I am trying to find a more or less complete objective cell from a Tasco 7TE 60 x 900 mm refractor. I do not need the...

14 Sep 2020

Views: 68

Found!
$1.00

Wanted Wanted 12in mirror budget build


By: lonn Location: 96007

Looking for a good 12in+ mirror. Looking for something good and usable with out recoating, As good as GSO?

14 Sep 2020

Views: 126

Sold!
$60.00

For Sale Discovery DOB Bearing Set For 9"-11" OD Tube - New


By: Tom Duncan Location: Chico, CA 96926

Unused set of new old stock Discovery brand DOB altitude bearings on slotted plate (for balance adjustment) with scre...

14 Sep 2020

Views: 121

Sold!
$75.00

For Sale 8" Pyrex Disc Polished Flat Both Sides $75 Shipped


By: J A VOLK Location: Flagstaff, AZ

Pyrex blank, 1.3" thick. It is polished flat on both sides, no idea how flat, came from a 70's ATM workshop. It has...

14 Sep 2020

Views: 95


$80.00

Wanted 6" f/8 optics


By: Augustus Location: Connecticut

Looking for 6" f/8 primary mirrors and 1.3" or 1.52" secondary mirrors for a class I'm doing at a local STEM space. A...

12 Sep 2020

Views: 126

Sold!
$35.00

For Sale AstroSystem 2.6 inch Secondary Holder


By: gdjsky01 Location: CALIFORNIA

I believe this to be a 2.6 inch minor axis holder. Measuring the minor axis, I get 2.5 inches. But there is a lip or...

11 Sep 2020

Views: 156


$20.00

For Sale Gilbert Solar Projection Screen Device


By: starbird Location: 95409

This is a vintage 1960 Gilbert oner the eyepiece solar projection screen. These came with Gilbert 2.5" reflector tel...

11 Sep 2020

Views: 143

Sold!
$45.00

For Sale 8" Pyrex Blank Pecision Optical $45


By: J A VOLK Location: Flagstaff, AZ

Old School Precision Optical 7740 Pyrex blank, 1.36" thick, fine ground flat. Small edge sliver within bevel. Add $...

09 Sep 2020

Updated: 09 Sep 2020

Views: 233

Sold!
$60.00

For Sale 8” f/3 Spherical Pyrex Mirror 1.375” thick


By: J A VOLK Location: Flagstaff, AZ

8” f/3 spherical mirror – unaluminized. ‘Old School’ Pyrex blank, 1.375” thick, back is ground flat. This was part of...

09 Sep 2020

Views: 139

Sold!
$20.00

For Sale Aluminum Telescope Tube Mounting Plate


By: starbird Location: 95409

This is an aluminum telescope mounting plate. It measures about 14" long by 2.5" wide by .3" thick. It is drilled w...

09 Sep 2020

Views: 107

Sold!
$20.00

For Sale Edmund Scientific 1965 Setting Circle 5.75" Diameter


By: starbird Location: 95409

This is a 1965 Edmund Scientific phenolic setting circle. It is 5.75" outer diameter with a 1.75" center hole. The co...

09 Sep 2020

Views: 96

Sold!
$20.00

For Sale Focus 2" Extension Tube with Brass Compression Ring


By: starbird Location: 95409

This is a 2" focus extension tube with a brass compression ring eyepiece capture feature. Used condition but nice. P...

08 Sep 2020

Views: 201


$25.00

For Sale Meade 10" Lightbridge Different Parts to Choose From


By: scopehed Location: Meadview, Az

Meade 10" Lightbridge Different Parts to Choose From 1) Meade LightBridge 5 Wooden Plates for 10" DOB Mount Plates O...

06 Sep 2020

Views: 481


$3,200.00

For Sale 20-inch Maksutov corrector lens


By: ThomasMM Location: Danville, CA 94526

For Sale 20-inch Maksutov corrector lens. This has been on an going project for some 20-years. Time is up. Requires a...

06 Sep 2020

Updated: 11 Sep 2020

Views: 129

UPDATED
n/a

Wanted WTB tube rings for a small reflector


By: wavefront Location: Colorado

I left a mount outside with a plastic bag over it and the wind pushed it over cracking one of the tube rings. Luckily...

05 Sep 2020

Updated: 08 Sep 2020

Views: 638

UPDATED
$10.00

For Sale ATM garage sale - mirrors, spiders, etc


By: Ps191 Location: Grant County Oregon

Hi everyone: Cleaning out the supplies and projects (keep watching for future ads with more optics, telescopes and e...

05 Sep 2020

Updated: 06 Sep 2020

Views: 352

UPDATED
$275.00

For Sale 10" mirror in cell


By: star-gazer777 Location: 84604

Meade 10" f/4.5 MIRROR, mounted in cell. No chips in glass, coatings in good shape. When last used, gave really nice...

05 Sep 2020

Views: 235


$60.00

For Sale Set of 8 3d printed split blocks 1.25 inch Truss poles


By: gatorengineer Location: PA

Set of 8 Truss poles brackets loosely modelled on an obsession block but with lot of improvements. Poles bottom on t...

05 Sep 2020

Updated: 18 Sep 2020

Views: 241

UPDATED
$30.00

For Sale Vixen/Celestron Rack-and-Pinion Newtonian Focuser - All Metal - Super Quality


By: davela Location: California

I am selling an all metal vintage Celestron (made by Vixen Japan) focuser, originally used on a small Newtonian teles...

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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