Obsession 20 inch dobson F5 - Telescopes
Clyde Bone and His Two Unusual Mersenne Telescopes! – Tele Vue Optics, Inc. Blog
A homemade 20 inch dob lightweight telescope, DS-5
Telescopes
Obsession Telescopes / Galleries / 20" Classic
RCOS: 20 inch Carbon Tube Telescope
The Observatory Class Telescope at werd.com | Telescope, Telescopes, Observatory
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Obsession Telescopes / Telescopes / 20" Classic
Obsession Telescopes / Telescopes / 20" Classic
Looking at life through a 20-inch telescope in Danbury
18 - 20 inch dobsonian - Discussions - Scopes / Whole setups - Stargazers Lounge
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Review: Meade MAX 20" telescope | WIRED
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Used 20-inch f/5 Obsession Dobsonian Telescope
What can I expect from a 20" Dobsonian? - Major & Minor Planetary Imaging - Cloudy Nights
