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24 Mar 2018

Updated: 24 Mar 2018

Views: 275

Sold!
$80.00

For Sale Protostar Curved Vane Secondary Mount


By: TVG Location: Kingsport, TN

I have for sale a Protostar Curved Vane Secondary Mount for a 2.14" (with mini shroud) or 2.6" (without mini shroud)...

24 Mar 2018

Updated: 29 Mar 2018

Views: 550

Sold!
$600.00

For Sale 12.5" F/4.89 Woden Optics Mirror


By: TVG Location: Kingsport, TN

I have for sale the nicest mirror I have ever owned. It is a pyrex 1.5" edge thickness 12.5" diameter mirror made by...

24 Mar 2018

Views: 293


$25.00

For Sale Nice Set of Rings for DOB Upper Truss Assy - 25.00


By: ruachsheavens Location: 60050

I parted out my 17.5" Project DOB. I sold the mirror and the cell, have these parts left. 1) Pair of upper cage ring...

23 Mar 2018

Views: 413

Sold!
$80.00

For Sale Zhumell SCT Dual Speed Telescope Focuser


By: HKang Location: schenectady NY

For use on Schmidt-Cassegrain (SCT) Telescopes 11:1 dual-speed focusing Crayford design Traveling distance of draw-tu...

23 Mar 2018

Views: 225

Found!
$1.00

Wanted Celestron Great Polaris Mount R.A. Motor Cover...


By: dragonstar4565 Location: San Jose, CA

Hello, I am looking for one of these covers, in good, to excellent condition for a reasonable price, to go on my GP m...

23 Mar 2018

Views: 996


$1.00

For Sale Refiguring Services


By: Steve Dodds Location: Salt Lake City

Refiguring for mirrors from 10” TO 25” Utilizing a full aperture (32” certified autocollimation flat) All services...

21 Mar 2018

Views: 320

Sold!
$225.00

For Sale RARE Novak 22.5" 18-Pt Primary Mirror Cell $225.00


By: ruachsheavens Location: 60050

This is a rare find - Novak products are great but no longer being made. This cell did a fantastic job of supporting...

20 Mar 2018

Views: 550

Sold!
$25.00

For Sale Parting out an Obsession Clone - rings, trusses, more


By: ruachsheavens Location: 60050

I sold the mirror and the cell, have these parts left. 1) Pair of upper cage rings - 22 inches ID, 24 -3/4 inches O...

20 Mar 2018

Updated: 16 Apr 2018

Views: 737

Sold!
$110.00

For Sale 6.38" refractor set


By: ccaissie Location: 04353

I do not know what this set was intended for. I suspect it was custom ordered, and R4 was cut to the wrong sign..184"...

19 Mar 2018

Updated: 19 Mar 2018

Views: 317

Sold!
$50.00

For Sale 4.15" refractor set BK7/SF5


By: ccaissie Location: 04353

Generated and ground. R1=29.55 R2=-37.28 .36" edge thk R3=-50.04 R4=flat .31" edge thk OSLO says if R2 was increase...

19 Mar 2018

Views: 340


$60.00

For Sale 5" x .6" Interferometer Grade BK7 window.


By: ccaissie Location: 04353

Made by Laboratory Optical Co. 2CC/3CX fringes from flat PK/P Interferometer grade. buyer pays shipping, paypal pre...

16 Mar 2018

Views: 358

Sold!
$125.00

For Sale Swift 77mm Achromatic Lens in Cell


By: starbird Location: 95409

This is a swift 77mm diameter lens with a 1000mm focal length. It is in the original swift cell and has a sliding dew...

16 Mar 2018

Views: 200

Sold!
$5.00

For Sale Tasco 4.5" Reflector End Cap and Front Metal Tube Ring


By: mlucas9 Location: Knoxville, TN

Hi All, For sale is a end cap and the front tube ring which the end cap fit into, this is off of a Tasco 11TR 4.5 re...

16 Mar 2018

Updated: 02 Apr 2018

Views: 326

UPDATED
$65.00

For Sale 5.38" x .63" BK7 blank REDUCED


By: ccaissie Location: 04353

From Stanley Brower collection. Raising funds for our club. Immaculate blank. Buyer pays shipping, Paypal preferred

16 Mar 2018

Updated: 02 Sep 2018

Views: 493

Sold!
$30.00

For Sale 12.5" thick plate tool


By: ccaissie Location: 04353

3 pieces.1. Full thickness Pyrex, United Lens Blank, Flat on front, no chips. R=150 on back, edge chips. $175 SOLD2....

16 Mar 2018

Updated: 07 May 2018

Views: 298

Sold!
$50.00

For Sale 6" x 1/2" BK7 Precision Anneal blank ON SALE!


By: ccaissie Location: 04353

From Stan Brower /Laboratory Optical Co. endowment to our club. Now raising funds, and getting this fine glass into t...

16 Mar 2018

Views: 281

Sold!
$200.00

For Sale 6.5" x .75" BK7/F2 Blanks


By: ccaissie Location: 04353

From Stan Brower /Laboratory Optical Co. endowment to our club. Now raising funds, and getting this fine glass into t...

15 Mar 2018

Updated: 18 Mar 2018

Views: 396

Sold!
$200.00

For Sale Parallax Tube Rings for C14


By: jrb Location: Thousand Oaks, CA

Parallax Standard Rings for a Celestron C14 Excellent condition

15 Mar 2018

Views: 432

Sold!
$75.00

For Sale 6inch F/5 Mirror


By: Heavensboy Location: NE

This is a repost for a Discovery 6inch F/5 Mirror. Plate glass centered dotted. Some dust on the mirror. Some glue...

15 Mar 2018

Views: 365

Sold!
$150.00

For Sale Novak 17.5in Hardware


By: KGE Location: Connecticut

Novak Hardware for a 17.5in MirrorThese items date to 1985:primary cell with 9-point flotation for a 17.5in mirror,sp...

14 Mar 2018

Updated: 12 Apr 2018

Views: 284

Sold!
$20.00

For Sale 9.25" x 10.5" x .53" Annealed Pyrex Sheet


By: ccaissie Location: 04353

Annealed Slab of Pyrex from Stan Brower's Laboratory Optical. Buyer pays shipping, Paypal preferred

14 Mar 2018

Views: 312

Sold!
$65.00

For Sale X-Y 6" mirror stand holder


By: ccaissie Location: 04353

Holds a 6.0" dia x 1" thick element and allows fine adjustment in Vertical tilt and Horizontal rotation. Probably hel...

14 Mar 2018

Views: 238

Sold!
$40.00

For Sale 8.50" x 11.88" x .67" Crown Slab


By: ccaissie Location: 04353

Flat ground, has (4) .314" dia holes on one edge. No visible strain, glass weighs 6.0#, s.g. is 2.46, so likely BK7 o...

14 Mar 2018

Views: 276

Sold!
$50.00

For Sale 10" dia x .79" Pyrex Annealed Sheet


By: ccaissie Location: 04353

Disk used as tool, fine ground convex surface R=148" (f/8), molded pattern on back. Nice chamfer, good faces, no vis...

14 Mar 2018

Updated: 24 Mar 2018

Views: 884

Sold!
$150.00

For Sale 10" f/5 Pyrex mirror by Mike Spooner


By: skyler338 Location: Corpus Christi, TX

I have a 10" Mike Spooner pyrex mirror for sale. It is excellent condition. Newly coated, center marked, 1.75" thick,...

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