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15 May 2018

Views: 278

Sold!
$23.00

For Sale Set of Four Jaegers 2" Cemented Achromatic Lenses


By: starbird Location: 95409

This is a set of four Jaegers 2" cemented achromatic lenses. Left over stock from my Jaegers collection been in stor...

15 May 2018

Views: 248

Sold!
$210.00

For Sale 2.6" Secondary 1/30th wave w Holder & Dew Heater


By: wcw Location: New York

For sale is a 2.6” Secondary Mirror in its Holder with Dew Heater. This is a 2.6” elliptical secondary mirror from A...

14 May 2018

Views: 189

Sold!
$15.00

For Sale Meade DS-80 Objective + Cell


By: Augustus Location: Connecticut

Selling the objective end of a Meade DS-80EC. 80mm f/11.2 objective, plastic lens cell, plastic dew shield, and front...

14 May 2018

Views: 209

Sold!
$28.00

For Sale 1.50" Meade secondary & holder REDUCE


By: jim kuhns Location: 31410

Coating very good. 3/8" stem. 2.25" end of stem to back of nut. total length 5.25" Great for that planetary build. Se...

14 May 2018

Updated: 23 Jun 2018

Views: 362

Sold!
$25.00

For Sale 6" Full Thickness Pyrex.... New Offer


By: ccaissie Location: 04353

These pieces have one unused face, the back face has a deep, fine-ground, concave face, used to block lenses at Labor...

14 May 2018

Views: 279

Sold!
$25.00

For Sale 13 Lbs of mixed small glass blanks


By: ccaissie Location: 04353

Yahoo! Small blanks, some Pyrex, some labelled optical glass, some unlabeled. One scratched flat. A BSC-2 block....

14 May 2018

Updated: 20 Jun 2018

Views: 757

Sold!
$375.00

For Sale Cave Primary Mirror 12 1/2" f/6


By: jrb Location: Thousand Oaks, CA

Cave Primary 12 1/2" f/6 2" full thickness New coating Original box and shipping label from Cave

14 May 2018

Views: 208

Sold!
$22.00

For Sale Astrosystems 4 inch Secondary Holder with Batting FREE SHIP


By: ruachsheavens Location: 60050

Used but still works - does not include mirror. Will come exactly as pictured. Price is just 22.00 with free shipping...

14 May 2018

Views: 443


$45.00

For Sale Superb 60mm Japanese Airspaced Lens in Cell


By: starbird Location: 95409

This is a super quality made in Japan 60mm F15 airspaced lens from the early sixties. In a nice machined aluminum cel...

14 May 2018

Views: 306

Sold!
$23.00

For Sale Vintage made in Japan Rack and Pinion Focuser Refrator


By: starbird Location: 95409

This is a vintage made in Japan rack and pinion focuser for a 60mm refractor telescope. Includes the .965" eyepiece...

14 May 2018

Views: 390


$23.00

For Sale Set of Vintage Japanese .965" Telescope Parts


By: starbird Location: 95409

This is a set of three vintage Japanese .965" telescope accessories. Included a .965" diagonal prism, .965" erecting...

14 May 2018

Views: 869

Sold!
$75.00

For Sale 10" F4.5 Parabolic Mirror Pyrex


By: starbird Location: 95409

This is a 10" F4.5 newtonian parabolic mirror. It is full thickness pyrex with good coatings. Unfortunately it was d...

13 May 2018

Updated: 13 May 2018

Views: 301

Sold!
$75.00

For Sale Melles Griot Non-polarizing Beamsplitter 25.4mm 632.8nm NOS


By: mark cowan Location: salem OR

Hi, This NOS (new old stock) Melles Griot non-polarizing beamsplitter is 25.4mm square and intended for 632.8nm use,...

13 May 2018

Updated: 16 May 2018

Views: 464

Sold!
$20.00

For Sale REDUCED ATM Parts


By: tmiddendorf Location: Central FL

REDUCED: Selling ATM parts for Newtonian scope: SOLD 1) Secondary Holder 3.1", Like new Astrosystems 4 knob adjustme...

12 May 2018

Updated: 13 May 2018

Views: 343

Sold!
$12.00

For Sale Unmounted Objective Lens - updated


By: penguinx64 Location: APO/FPO/DPO

I have a 70mm diameter 600mm focal length f/8.5 achromat unmounted objective lens for sale. This came from an older M...

12 May 2018

Views: 555

Sold!
$550.00

For Sale 12.5 inch f/5.0 mirror full thickness


By: Prasad Location: Eastern PA, near Philly

I have for sale a 12.5 inch mirror, thickness about 1.5 inch and FL 62.5 inches. It weighs nearly 25 lbs. I am the se...

12 May 2018

Views: 383

Sold!
$23.00

For Sale Vintage Refractor Rack and Pinion Focuser Japan


By: starbird Location: 95409

This is a vintage rack pinion focuser made in Japan. All metal including the knobs. Includes the .965" eyepiece ada...

12 May 2018

Views: 256

Sold!
$23.00

For Sale Machined Dec Slow Motion Tangent Arm for EQ mount


By: starbird Location: 95409

This is a machined aluminum dec tangent arm slow motion for a german equatorial mount. Lots of machining in this and...

12 May 2018

Views: 241

Sold!
$45.00

For Sale Vintage 60mm Refractor Lens in Collimatable Cell


By: starbird Location: 95409

This is a superb 60mm F15 Airspaced Lens. Made by Royal Optics of Japan and is vintage late fifties early sixties. I...

11 May 2018

Updated: 15 Feb 2019

Views: 235

UPDATED
$25.00

For Sale Stainless disks (3"OD, 0.8" ID, 0.5 thick)...counterweight or ?


By: starcanoe Location: 32563

Hi all. Have some really heavy duty stainless steel disks (super washers?). I have 4 of them. They look like nice ma...

11 May 2018

Views: 190

Found!
$200.00

Wanted 4-6" Refractor Objective


By: Augustus Location: Connecticut

Looking for a 4-6" refractor objective, preferably f/10 or slower. Willing to pay up to $200.

11 May 2018

Views: 269

Sold!
$35.00

For Sale Foucault Tester


By: Augustus Location: Connecticut

I only need one of these, so this is up for sale. Adjustable on 3 axes, AC powered, has an on-off switch. Decent con...

11 May 2018

Views: 154


n/a

Wanted 1.83" premium secondary


By: Phillip Creed Location: NE Ohio

I'm on the lookout for a premium-quality (ex: Antares / Astrosystems / Protostar) 1.83"-secondary mirror. Doesn't h...

11 May 2018

Views: 342

Sold!
$50.00

For Sale 6" Pyrex f/2 mirror


By: ccaissie Location: 04353

Full thickness 6" x 1" straight-sided blank, polished, ROC=24" If interested will check figure...might be spherical?...

11 May 2018

Views: 321

Sold!
$30.00

For Sale 6" Pyrex mirrors, fine ground


By: ccaissie Location: 04353

6" x 1.0" straight-sided blank with a fine ground, ROC =57". $35 6" x .93" tapered blank fine ground, ROC =36" $30 5...

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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