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Today, 01:51 PM

Views: 54

Offer Pending
$25.00

For Sale 80mm f7.5 600mm Cemented Achromat


By: RichA Location: Toronto

80mm f7.5 600mm Cemented Achromat U.S. made by Melles Griot. Magnesium fluoride coated Glass/coatings very good, no s...

Today, 11:33 AM

Views: 29


n/a

Wanted 130mm mirror cell


By: astropinci Location: westernmass

I am looking for a 130slt mirror cell. Thanks

Yesterday, 08:30 PM

Views: 135

Sold!
$95.00

For Sale Celestron C8 Tube Mechanical Components but no Optics


By: starbird Location: 95409

This is a celestron C8 sct tube. Black tube with no optics. Includes the tube, mirror mounting center stalk, interna...

Yesterday, 07:50 PM

Views: 125

Sold!
$55.00

For Sale Cell and Focuser from Orion's SkyView Pro 100mm Refractor


By: Van Huynh Location: Santa Maria, CA

Both items have nicks, scrapes, and paint chips. No dents or cracks. Cell is collimatable. Dew shield slides on and i...

Yesterday, 02:08 PM

Views: 29


$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...

Yesterday, 02:05 PM

Views: 22


$30.00

For Sale NEW Carton 4" Telescope Mirrors


By: MASILMW Location: US

NEW Carton 4" Telescope Mirrors 4" f/10 Spherical Made in Japan by Carton Optical Co. From a recent purchaser btw - T...

Yesterday, 02:04 PM

Views: 220

Sold!
$385.00

For Sale Explore Scientific 127 ED Apo Triplet Lens


By: MASILMW Location: US

Explore Scientific 127 ED Apo Triplet Lens Comes in the Explore Scientific adjustable cell. The triplet lens system i...

Yesterday, 01:31 AM

Views: 56


n/a

Wanted Terrabeam Meade 4" objective lens


By: delorehal Location: worldwilde

I'm looking for a Terrabeam IR 4" objective made by Meade

Yesterday, 12:20 AM

Updated: Yesterday, 02:45 AM

Views: 54

UPDATED
n/a

Wanted 10 inch Novak or Univ. Optics Mirror Cell


By: Philler Location: Olathe, Ks. USA

I'm looking for Novak mirror cell or a University Optics mirror cell for a 10 inch Mirror.

30 Jun 2020

Views: 165

Sold!
$200.00

For Sale 3.1" 1/20 Antares Secondary Mirror


By: kb58 Location: San Diego area

Bought in early 2019, it sat in its box for a year, and was installed around April of this year. Long story short, I...

30 Jun 2020

Views: 158

Sold!
$80.00

For Sale Objective Lens From Celestron's Regal 100F-ED Spotting Scope


By: Van Huynh Location: Santa Maria, CA

There are some sleeks and spots in the coatings. Only noticeable under a bright artificial light source and only at c...

30 Jun 2020

Views: 32


n/a

Wanted WTB Optical Flat 6-8”


By: coinboy1 Location: Tulsa, OK

WTB Optical Flat 6-8” for ATM project. Let me know what you have, wavefront quality, and price. Thanks!

30 Jun 2020

Views: 146


$15.00

For Sale Misc. Achromats


By: MASILMW Location: US

60mm Air-Spaced Achromats (no cell) 400mm FL - has a very small scratch $18.00 700mm FL - $15.00 750mm FL - $15.00 90...

30 Jun 2020

Views: 34


$15.00

For Sale 60mm x 240mm Cemented Achromat


By: MASILMW Location: US

60mm x 240mm Cemented Achromat Lenses are MgF2 Coated. There's a very small chip at the edge that goes into the light...

30 Jun 2020

Updated: Yesterday, 08:58 AM

Views: 118

UPDATED
$32.00

For Sale #60 Silicon Carbide 4 pounds unopened (SOLD)


By: johnlynch Location: Delaplane, Virginia

I have an extra 4 pounds of #60 Silicon Carbide that I purchased from Willmann-Bell several years ago. Never opened....

30 Jun 2020

Views: 128


$1.00

Trade 5" Secondary mirror


By: a__l Location: Russia

Trade of my 5" Secondary mirror to your Televue Panoptic 41. Purchased at https://www.ostahowskioptics.comThe conditi...

30 Jun 2020

Views: 78


$1.00

Wanted Surplus Shed 3" Mak optics


By: Matthew Paul Location: Orange County NY

I'm looking to see if anyone has this set of optics that they would like to sell me. I'm getting closer to finishing...

29 Jun 2020

Views: 87


$40.00

For Sale TSI (U.S.) 70mm Achromat lens in cell 375mm f.l.


By: RichA Location: Toronto

TSI (Italy) 70mm Achromat lens in cell 375mm f.l. Good condition, cemented, mag-fluoride coated. Cell top ring o.d....

29 Jun 2020

Updated: 29 Jun 2020

Views: 94

Sold!
$38.00

For Sale ADM Counterweight


By: OrionNebula32 Location: Townsend, MA

ADM VCW-S-V Series Counterweight with 3″ Threaded Rod3lb weight attaches to the front of your vixen dovetail if you h...

29 Jun 2020

Updated: 29 Jun 2020

Views: 435

UPDATED
n/a

For Sale Free Parts


By: Couder Location: Missouri

You can have any or all, just pay shipping. 2: stalks for diagonal mirrors - I'll put in padded envelope. Guessing a...

29 Jun 2020

Views: 141

Sold!
$110.00

For Sale Dob Driver II & Related (Maybe) Parts


By: Tom Duncan Location: Chico, CA

Got this lot in a recent astro estate buy, all in the same box but I'm not sure they all related, mostly because of t...

29 Jun 2020

Views: 34

Found!
$75.00

Wanted full thickness newtonian mirror cell


By: Bonham Location: waldron, arkansas 72958

I would like to buy a mirror cell for an eight inch full thickness Newtonian mirror. It could be a Novak, Criterion,...

29 Jun 2020

Views: 121

Sold!
$60.00

For Sale 6" f/4.8 Primary Mirror


By: MASILMW Location: US

6" f/4.8 Primary Mirror Uses one inch thick fine annealed Pyrex and is fully Aluminized. $60.00 shipped in CONUS PayP...

29 Jun 2020

Views: 90

Sold!
$35.00

For Sale 90mm x 1000mm AirSpaced Achromat


By: MASILMW Location: US

90mm x 1000mm AirSpaced Achromat The lenses are coated and come in a plastic cell. This is a used achromat and would...

29 Jun 2020

Views: 54


$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. $40.00...

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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