For Sale: Obsession Telescope 18" (New Revised)

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mitchroberts2530

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Oct 24, 2025, 9:27:26 PM (4 days ago) Oct 24
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I purchased the Obsession 18" for $5,700 in January 2002. I'm the first owner. NOVA Optional Systems made the 18” main mirror, and a certificate of optical quality, Ronchigram for 18” f/4.5. Serial #10-01-1253.  Coating Type: Enhanced Aluminum. Date: Nov. 2001.  I checked the main mirror and secondary mirror; they still look in good shape. I didn't give them for recoating.   I used this 18" at various star party places like Shingletown Star Party, Bumpass Hell, Henry Coe State Park, Anderson Lake,  and Fremont Peak State Park, and some others for about 3 years. Once, my telescope fell during a strong twister at Lake San Antonio in 2003. It is a tiny crack on the top wood ring, but everything is working well today.  It comes with the encoders, but there's no controller, so you would need a 'push-to' system to use them. My telescope was out of use for a long time after the summer of 2005, because of the odd jobs I took on.  I take care of it so well; it keeps a dust-free storage box for over 20 years, and it looks like new. I decided to sell to anyone to enjoy the beautiful skies with the Obsession 18".

What is included with Obsession 18:

1.      Focuser by Feather touch by Starlight Instruments

2.      Truss Poles by Obsession Telescopes (homemade storage bag)

3.      Ripstop Nylon light shroud by Obsession Telescopes

4.      Telrad Reflex Finder Sight by Obsession Telescopes

5.      Orion 9x50mm Correct-Image Right-Angle

6.      Kendrick Astro Instruments Barlow Laser Collimator 2" Barrel for lining up the mirrors

7.      Wheelbarrow handles by Obsession Telescopes

 

Local pickup only: 95051 (Santa Clara, CA). You will need a minivan or an SUV for transport.

Ask for $4,400.00 or OBO. 

Mitch

Note: These pictures were taken in 2005.  If you want to see the present images, I need to set it up and take new photos for you.  Thank you.

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