Obsession Telescopes began selling high quality large aperture telescopes in 1990. Although other manufacturer's may include somewhat better mirrors, overall Obsession has pretty much become an overall quality standard that other Dobsonian reflectors are compared to.
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The entire Obsession line is made up of open truss tube Dobsonian mount telescopes. All feature excellent craftsmanship, no-tool setup, handles for moving the telescope, fans for quick cool-down of the primary mirror and 2" Crayford-style focusers. The telescopes have been provided in 15" through 32" diameter, but because of their high cost only the smaller ones are considered here. The smallest of the line is a 15" f/4.5 telescope. It has the same features as all the rest of the line except that separate "wheely bars" are not supplied with it. The next two sizes include the 18" f/4.5 and the 20" f/5. They are available with Galaxy Optics or Nova mirrors. | |
| Obsession 15" |