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25 Jun 2020

Updated: 15 Jul 2020

Views: 490

UPDATED
$600.00

For Sale NIB 12.5" mirror - see description for more info & specs


By: cjmangino Location: Olympia, WA

NIB 12.5" mirror, focal length 63.58", P-V1/ 10.2, RMS1/ 24, S Ratio .931Hi - this is a mirror my husband purchased t...

24 Jun 2020

Views: 185

Sold!
$20.00

For Sale 18" Trunnions (altitude bearings)


By: Barry Peckham Location: HI

Designed in AutoCad and made on a CNC router using cabinet-grade 3/4" plywood, ready for edge-banding and finishing....

24 Jun 2020

Views: 544

Sold!
$150.00

For Sale 10" Dobstuff kit, mostly finished


By: Augustus Location: Connecticut

Used, no focuser board, a few extra holes and some wear here and there. Varnished with Minwax triple-thick polyuretha...

24 Jun 2020

Views: 245


$15.00

For Sale 7/8" x 36" Aluminum Tubing


By: Barry Peckham Location: HI

This is the diameter recommended by Tom Clark (and me) for truss poles. #6061 aluminum alloy, very stiff but also cru...

24 Jun 2020

Views: 288


$15.00

For Sale Corner Trim for 1/2" ply Dobsonians


By: Barry Peckham Location: HI

This shape of trim is hard to make but lets mirror boxes go together without lapping the sides. I use a 5/8" x 5/8" g...

24 Jun 2020

Views: 116

Sold!
$18.00

For Sale 4.125" Double convex lens


By: wavefront Location: Colorado

This 106mm equi convex (or fairly so) lens has a focal length of approximately 5 inches. Glass type unknown. Coated....

22 Jun 2020

Views: 186


$49.00

For Sale 98mm diam 170mm focal length achromat lens IR optimized


By: RichA Location: Toronto

98mm diam x 170mm focal length achromat lens IR optimized. Excellent condition. Outer diameter is 110mm, with short...

21 Jun 2020

Updated: 23 Jun 2020

Views: 379

Sold!
$150.00

For Sale 9.75" (10" Nom) f/5 Mirror (Nova-Refig/Uncoated)


By: comabereni Location: Utah (84009)

This mirror is finished and ready for coating. I had it tested and refigured by Steve Dodds of Nova Optical in May, 2...

19 Jun 2020

Updated: 28 Jun 2020

Views: 418

UPDATED
$300.00

For Sale Jaegers 6" f/5 objective set


By: mccarthymark Location: Fremont, CA

Very nice Jaegers 6" f/5 objective crown & flint. Put up very nice views for me, but I'm raising funds for someth...

19 Jun 2020

Updated: 19 Jun 2020

Views: 422

Sold!
$60.00

For Sale Excellent 8" F/6 Newtonian mirror


By: rachnoman Location: Indiana

Available : Beautiful vintage 8" F/6 Pyrex mirror with diffraction limited optics. The figure is very nice and exhib...

18 Jun 2020

Views: 129

Sold!
$35.00

For Sale AstroSystems Super Duty Spider for 18.5" ID Tube


By: Augustus Location: Connecticut

Good shape. Some wear. $35 + shipping.

18 Jun 2020

Views: 122

Sold!
$190.00

For Sale AstroSystems 3.1" Secondary + Holder + DewGuard


By: Augustus Location: Connecticut

Great shape. These are rated to at least 1/14 wave, not sure what mine specs at but something around there I presume....

18 Jun 2020

Views: 219


$25.00

For Sale 70mm Secondary mirror & Diagonal Mirror to Choose From


By: scopehed Location: Meadview, Az

70mm Secondary mirror & Diagonal Mirror to Choose From 1) 70mm minor axis elliptical secondary. Aluminum coating...

17 Jun 2020

Views: 105


$12.00

For Sale Phenolic Navigation Knob/Nylon Bolt for Dobsonian Reflector


By: Artemis65 Location: CALI.

Up for sale is a phenolic knob. I had an extra and figured someone could use it for a project. Makes a great Navigati...

17 Jun 2020

Views: 129


$32.00

For Sale 70mm x 280mm Cemented Achromat


By: MASILMW Location: US

70mm x 280mm Cemented Achromat Lenses are Multi-Coated and includes the Cell/Tube and Lens Cover. $32.00 shipped in C...

16 Jun 2020

Views: 162


$13.00

For Sale Bresser 70mm Refractor Parts to Choose From


By: scopehed Location: Meadview, AZ

Bresser 70mm Refractor Parts to Choose From 1) Bresser 1.25" Focuser from their 70mm refractor tube Excellent Condi...

15 Jun 2020

Views: 96


$100.00

For Sale Quick Coupling Adaptor M44 for Zeiss scopes like Telementor


By: Disciplus55 Location: France

Hi there, If you haven't seen the discussion in the forum, I got some quick coupling adaptor for Zeiss native M44 thr...

14 Jun 2020

Views: 171


$18.00

For Sale Declination setting circle


By: schiefspiegler Location: Florida

FRom Meade 10" SCT. 5 inches diameter, 0.125" thick, 1/4" central hole. New, never used. $18.00 shipped to lower 48.

14 Jun 2020

Views: 107


$60.00

Wanted Ring Adapters


By: Star_Explorer Location: Florida

I have a 60mm guidescope on rings that I need to attach to a Losmandy style rail. I do not want to drill holes into t...

14 Jun 2020

Views: 154

Sold!
$85.00

For Sale Zhumell Z12 Altitude Bearings


By: Fromspace411 Location: Tacoma, WA

Great condition. All hardware present. GSO style bearings that fit a number of brands and any diy 14 inch tubes. $8...

14 Jun 2020

Updated: 27 Jun 2020

Views: 385

Sold!
$65.00

For Sale 6" f9 mirror


By: Ronnie W Sherrill Location: Statesville NC

I have a 6" f9 newtonian mirror in very good shape for sell. Price is $65.00 Thanks for looking................

11 Jun 2020

Updated: 11 Jun 2020

Views: 324

UPDATED
$115.00

For Sale 4" F4.5 Air Spaced Achromatic Lens in Aluminum Cell


By: starbird Location: 95409

This is a 100mm 4" aperture F4.5 focal ratio air spaced doublet achromatic lens in cell. The cell is a beautiful anod...

11 Jun 2020

Views: 202

Sold!
$65.00

For Sale Altitude Bearings/ Trunnions for 10" Dob


By: comabereni Location: South Jordan, Utah

Greetings, these are nicely cast and machined bearings from a 10" Zhumell Dob. They are designed to fit an approximat...

11 Jun 2020

Views: 209

Sold!
$12.00

For Sale Dobsonian 3/8" center pivot roller bearing


By: opgenorth Location: So. Cal.

Two sets of roller bearings available for the center pivot bolt on dobsonian scopes. They have two hardened thrust w...

11 Jun 2020

Views: 142


$40.00

For Sale Two Meade 90mm Lens, Cell, Dew Cap & Dust Cap to Choose From


By: scopehed Location: Meadview, Az

Two Meade 90mm Lens, Cell, Dew Cap & Dust Cap to Choose From 1) Meade 90mm Lens, Cell, Dew Cap & Dust Cap f/...

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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