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Old 20-12-2018, 07:08 AM
gts055 (Mark)
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gts055 is offline
 
Join Date: Jun 2005
Location: Mornington Peninsula Victoria Australia
Posts: 328
I have a 20" F5 Obsession dobsonian telescope. Beginning in 1989, Dave Kriege of Obsession telescopes was one of the first to commercially produce high quality large aperture dobsonian telescopes with precision mirrors. Craftsman made woodwork with the whole telescope being a work of art. Brass plaques are fitted to every one made are inscribed with the original owners name and serial number. Virtually all Obsession telescopes in Australia will have have been imported from the USA as there were no similar offerings available in Australia unless you made your own. Dave Kriege and Richard Berry published a book titled "The Dobsonian Telescope, A Practical Manual For Building Larger Aperture Telescopes" which became the reference for amateur makers. SDM came much later and at a glance appear very similar to the Obsession, however Peter Read has made many refinements to the assembly. Mine has a mirror sling from Peter and it is an improvement over the original mirror support. SDM telescopes are made with pride to the the highest standard and being in Australia, convenient to deal with. Mark
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