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Today, 12:22 AM

Views: 79

Sold!
$24.00

For Sale Set of 3.5" ID Aluminum Clamp Rings with Dovetail


in ATM Parts and Such by starbird

This is a set of aluminum 3.5" inside diameter tube clamp rings mounted on what looks like a Cg5 dovetail. Nice condi...

Yesterday, 10:00 PM

Views: 344


$1,700.00

For Sale 20" f/4.5 Kevin Frederick primary mirror, BVC substrate


in ATM Parts and Such by Augustus

It is absolutely soul-crushing to be selling this, but I do not really feel I have much of a choice. I built a scope...

Yesterday, 09:16 PM

Views: 135


$70.00

For Sale Classic Meade Japan 2/1.25" Research Grade Focuser REDUCED$70


in ATM Parts and Such by 042611

Big beautiful classic Meade focuser with helical cut rack, all metal Japanese construction, as sold on their 'Researc...

23 Apr 2019

Views: 57

Sold!
$27.00

For Sale Edmund 6" Mirror Cell


in ATM Parts and Such by starbird

This is an edmund scientific 6" mirror cell. Great condition original edmund cell spring loaded for collimation. Fi...

23 Apr 2019

Views: 99

Sold!
$74.00

For Sale Criterion 6" F8 Parabolic Mirror


in ATM Parts and Such by starbird

This is a criterion 6" F8 parabolic mirror from the criterion dynascope 6" reflector. These has some of the finest 6...

23 Apr 2019

Views: 189

Sold!
n/a

For Sale 102mm f9.8 Celestron objective lens


in ATM Parts and Such by montag

This is a beauty. I put it in a test rig, and it was crisp and contrasty. And tack sharp. I couldn't see any CA but...

23 Apr 2019

Views: 291

Offer Pending
$1.00

For Sale Components for 13.1" scope


in ATM Parts and Such by nreed

This is another one of those projects that will not get completed by the person that started it (myself). I have a wo...

23 Apr 2019

Views: 218


$175.00

For Sale 6" F/8 Achromatic Refractor Doublet Lens


in ATM Parts and Such by Van Huynh

I have no background info on this lens.Surfaces are good with no scratches or nicks.There is one tiny dust speck in b...

22 Apr 2019

Views: 139


$225.00

For Sale 23" x 7/8" Plate Glass Blank


in ATM Parts and Such by mark cowan

This is a large and increasingly rare piece of plate, rough trimmed to 23" diameter. It has a ding on one side (shown...

22 Apr 2019

Views: 54

Found!
$300.00

Wanted 12 1/2 inch f/4 to f/4.5 mirror


in ATM Parts and Such by rcobservatory

I am looking for a nice but not expensive used 12 1/2 inch full thickness Pyrex mirror with good coating. Can be Cave...

22 Apr 2019

Views: 63


$23.00

For Sale Edmund Scientific 1.25" Minor Axis Diagonal on Stalk


in ATM Parts and Such by starbird

This is an edmund 1.25" minor axis elliptical diagonal mounted on a single arm stalk. Used on the edmund space conque...

21 Apr 2019

Views: 144


$600.00

For Sale 1979 Cave Optical 10" f/5 mirror


in ATM Parts and Such by Jim Curry

Dusty, no scratches. W/2.5" elliptical. Thanks for looking. Jim

21 Apr 2019

Views: 183


n/a

For Sale Free steel tube for 12" F5 reflector


in ATM Parts and Such by laixiaolue

I will rebuild my 12" DOB and this tube is useless for me. The steel tube with end ring and cap is in great condition...

21 Apr 2019

Views: 23


n/a

Wanted Borg Rack & Pinion Focuser


in ATM Parts and Such by cookjaiii

Wanted:Borg Rack & Pinion Focuser https://www.buyteles...-focuser-177935Manufacturer: BorgMPN: BORG9850SKU: BORG9...

20 Apr 2019

Views: 194

Sold!
$27.00

For Sale Rack and Pinion Reflector Focusesr made in Japan


in ATM Parts and Such by starbird

All metal made in Japan Rack and Pinion reflector focuser. Super high quality all metal focuser even the knobs are m...

20 Apr 2019

Views: 70


$1.00

Wanted 10" to 12.5" Premium Mirror


in ATM Parts and Such by jeanine

Looking for a nice 10" to 12.5" premium mirror F5-F6. Performance documentation a big plus.

20 Apr 2019

Views: 153

Sold!
$70.00

For Sale 8 inch f/6 GSO Mirror


in ATM Parts and Such by Sam M

This is the stock GSO mirror that came in the Zhumell Z8 that I bought used. The coatings have some wear, but are st...

20 Apr 2019

Views: 197

Sold!
$200.00

For Sale 12 inch f/5 Mirror


in ATM Parts and Such by Sam M

I purchased this mirror from a CN member. It came from a Chinese made 12" Dob, I want to say Orion, but I don't reme...

20 Apr 2019

Updated: 22 Apr 2019

Views: 130

Sold!
$185.00

For Sale 17 x 0.77" Plate Blank - Generated to your spec


in ATM Parts and Such by mark cowan

This is a 17-1/8 x 0.77" plate blank, good anneal. I'm going to generate it to around f/4 (68" FL) shortly but if you...

20 Apr 2019

Views: 227

Sold!
$70.00

For Sale 12 inch f/5 GSO Uncoated Mirror


in ATM Parts and Such by Sam M

This was the original mirror from my Apertura AD12. Long story short, I tried to have it refigured, and when the coa...

20 Apr 2019

Updated: 22 Apr 2019

Views: 151

UPDATED
$350.00

For Sale 16-1/8 x 0.70" f/6 Fused Silica (Quartz) Polished Blank Unfigured


in ATM Parts and Such by mark cowan

This is a 16-1/8 x 0.70" f/6 fused silica (quartz) mirror blank, fully polished out and fairly spherical. It will be...

20 Apr 2019

Views: 274


$900.00

For Sale 14.7" f/4.9 Lightweight Quartz mirror


in ATM Parts and Such by Steve Dodds

For sale a 14.7" Quartz mirror. Focal length 72.25" .8" thick Quartz. There is a chip on the edge about 1 cm squar...

19 Apr 2019

Updated: 20 Apr 2019

Views: 110

Sold!
$35.00

For Sale Set of Two Original Cave Tube End Rings


in ATM Parts and Such by starbird

This is a set of two original Cave Optical Company Aluminum Tube End Rings. They fit a tube of 7.25" OD. Full thickne...

19 Apr 2019

Views: 87

Sold!
$35.00

For Sale Cave Optical Company 6" Adjustable Mirror Cell


in ATM Parts and Such by starbird

Excellent original Cave 6" mirror cell. Spring loaded adjustment for collimation. Real cave equipment. Price is $35...

19 Apr 2019

Views: 206

Sold!
$85.00

For Sale Custom 6" F8 Parabolic Mirror Kleim Precission Mirrors


in ATM Parts and Such by starbird

This is a custom made 6" F8 parabolic mirror. Full thickness pyrex with good coating. Kleim precission optics not ma...

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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