Post Pyrex Price 12.5" f/5 $3,595

The Obsession 12.5 f/5 is a premium telescope for observers that want the best of all worlds. Crisp images at f/5 so no coma corrector needed. Super compact size that can be hauled in any car. Ease of use second to none. Full thickness primary for perfect images. Curved spider for views like an apochromat. Fully compatible with the powerful Argo Navis digital setting circles. Fast set up with no ladder needed. Nearly everyone can observe with their feet on the ground! In fact, sit down astronomy is possible for nearly half the sky. Ideal for star parties, public viewing events, schools, or anyone that wants a premium telescope. Views better than anything on the market of similar aperture. Best of all it's an Obsession with our famous quality and design at a fantastic price. More Information

Post Pyrex Price 15" f/4.5 $5,195

Now everyone can own a piece of the dream. The Obsession 15 has the same quality and award winning design as our other telescopes at a really great price. Four times the light gathering power of an 8 inch scope so you get much bigger and brighter images. With an Obsession 15 you can really see the universe. Easy to set up and use, the eyepiece height is always less than 5 1/2 feet off the ground. Most observers won't even need to use a ladder! Wheelbarrow handles included at no extra charge. More Information

Post Pyrex Price 15" f/4.2 Ultra Compact $5,495

The Obsession 15" f/4.2 UC includes the Feathertouch focuser, Telrad, external light baffle, and counterweight kit.

The Obsession 15" UC (Ultra Compact) is the ultimate compact scope for the discriminating enthusiast who wants big aperture in a small package. There are no short cuts in construction or performance. The Obsession 15" UC features the same quality craftsmanship and award winning design as found on our renown 20, 25, 30 and 36 inch telescopes. More Information

Post Pyrex Price 18" f/4.5 $7,095

The Obsession 18 is the ultimate compact scope for the discriminating enthusiast who wants big aperture in a small package. There are no short cuts in construction or performance. The Obsession 18 features the same quality craftsmanship and award winning design as found on our renown 20, 25, 30 and 36 inch telescopes. A small step ladder is required when the scope is pointed near the zenith but most observing will be done with your feet on the ground. We've done our homework--the 18 is easy to set up and a joy to use. Fantastic deep sky and planetary images. One look and you'll re-learn what it means to be excited about astronomy. More Information

Post Pyrex Price 18" f/4.2 Ultra Compact $7,595

The Obsession 18" f/4.2 UC includes the Feathertouch focuser, Telrad, external light baffle, and counterweight kit.

The Obsession 18" UC (Ultra Compact) is the ultimate compact scope for the discriminating enthusiast who wants big aperture in a small package. There are no short cuts in construction or performance. The Obsession 18" UC features the same quality craftsmanship and award winning design as found on our renown 20, 25, 30 and 36 inch telescopes. A small step ladder is required when the scope is pointed near the zenith but most observing will be done with your feet on the ground. We've done our homework--the 18 is easy to set up and a joy to use. Fantastic deep sky and planetary images. One look and you'll re-learn what it means to be excited about astronomy. More Information

Post Pyrex Price 20" f/5 $7,595

Post Pyrex Price 20" f/4 $8,595

This is truly big aperture. Thousands of deep sky objects will tempt you. In fact, nearly everything in Uranometria 2000 is within your grasp! The Obsession 20 is the scope that in 1989 revolutionized the Dobsonian. Our user friendly design, craftsmanship second to none, one person set up and super smooth operation have since made Obsession the standard by which all other Dobsonians are compared. The 20 inch is the ultimate blend of cost, ease of use, and visual impact. If you want an instrument that will provide you with a lifetime of celestial enjoyment, the Obsession 20 is it. It's simply the telescope of choice for deep sky enthusiasts. More Information

Post Pyrex Price 25" f/5 $13,495

Post Pyrex Price 25" f/4 $14,495

Forget averted vision. Globulars, nebulae, and galaxies will come screaming out of the eyepiece. Join the realm of Herschel whose famous NGC catalog of deep sky object descriptions are exactly what you will experience. This is the telescope that Dave Kriege, founder of Obsession, uses for his personal observing. The Obsession 25 is considered to be the ultimate telescope for the serious deep sky astronomer who can afford the best. One person set up, one handed guiding, one incredible observing machine. Try direct vision - you'll get used to it.

The 25" Obsession can be ordered as an f/5 (125" focal length) - or as an f/4 (100" focal length). More Information