Six 1.25 inch diameter. Decide which best serves your observing needs. The 18" f/4.2 UC (Ultra Compact) is a revolutionary design. Manufacturer of portable deep sky telescopes. Eight pole design and one piece cast aluminum side bearings. Includes 2" magnetic barlow lens and mask for the new barlowed laser collimating technique. Enhanced Aluminum - 96% reflectivity, with dielectric overcoat (a supreme coating) standard on all primary mirrors. It is a welded steel framework made from NC laser cut steel. 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. My friends may be contacting you about making one for them!! The ultimate coating for the deep sky obsessed. It has become a star party favorite, and a tremendous personal telescope. Orion 10023 SkyQuest XX12i IntelliScope Truss Dobsonian Telescope. Comes standard on all Obsessions 12.5" through 25" at no extra charge. If you only observe in the city at home then the Classic is the better choice. The JMI EV3 comes standard on all Classic Obsessions. Prices do not include shipping and crating. Then, we took the scope to our dark sky spot in the Caddo National Grassland in northeast Texas. A Deposit is required to place an order ($2,000 for 18" Classic), Obsession Telescopes Secondary mirror heating system automatically senses the air temperature and the mirror temperature, then maintains the secondary at a preset (adjustable) temperature above the ambient air temperature to prevent dewing or icing. We are your source for astronomy telescopes, eyepieces, astroimaging cameras, and more! The feathertouch focuser is awesome. Our revolutionary Virtual Mirror Box (VMB) is the foundation of the UC design. Saturn Compare the Ultra Compact to the Classic Obsession 18 inch, Ease of use (setup, take down, collimation), components covered with satin black laminate, components are stained and have six coat polyurethane finish, Same for both, Ebony star on etched virgin Teflon. Clearance width required with wheelbarrow handles attached. Jeffrey Kaszczuk, 18" UC owner in northeast Texas (Highly recommended). See the Focuser Options page for more information. Includes virtual mirror box nested in rocker (will fit in most trunks or hatchback). Best one of the night was M51. Large Aperture, no big ladder needed! Two inch flex free glass. Thanks Dave!! Same for both. USA. (you supply the lead shot or sand) Recommended if you intend to use heavy barlow/eyepiece combinations, a Paracorr coma corrector, a traditional finderscope, or the Argo Navis digital setting circles. This coating is standard on all Obsession secondaries at no extra charge. Connected in pairs at apices. One look and you'll re-learn what it means to be excited about astronomy. With your order, please list any options and/or accessories you want, your mailing address, e-mail address if any, and phone number(s). The UC uses the same proven design criteria and materials that made the Classic Obsession so successful and the most copied larger aperture dob on the market. Classic is better with 360 degree upper tube assembly baffle. Compare the Ultra Compact to the Classic Obsession 18 inch. 18” Obsessions use fused quartz for the primary mirror glass. Lower eyepiece height means 90% of observing will be done with your feet on the ground. Nobody else does this. If you like to take your scope to a dark site the UC is an excellent choice, especially if you drive a sedan or have limited transport space. See Optics page for more info. 82 pounds Includes mirror box, mirror, and dust cover. I can truthfully say it is the best purchase I have ever made. Mirror box and rocker have more mass. With your order, please list any options and/or accessories you want, your mailing address, e-mail address if any, and phone number(s). ", Read Tom Trusock's review of the 18" UC - Birth of a New Classic, See what Gary Kopff at Wildcard Innovations had to say. See Optics page for more info. If you have limited hauling or storage capacity, (like the trunk of a small car) then this is the scope for you. February 27, 2012. Lake Mills, WI 53551 Sky-Watcher's Stargate 18-inch Dobsonian Review by Sky& Telescope 2018 APRIL ISSUE Now everyone can have a big aperture scope and take it to their dark sky site. If your vehicle is small or you intend to put it in the trunk, then the Ultra Compact is the obvious choice. A joy to use and beautiful to look at. As with our Classic series, you cannot get better optics at any price anywhere. I couldn't peel him away from my scope HAHAHAHA!!! The Obsession 18" features the same quality craftsmanship and award winning design as found on our renown 20, 25, 30 and 36 inch telescopes. His Skywatcher sat alone and unused all night. I just can't say enough about its ease of set-up, spot-on collimation, and precision observation at the eye piece. Please e-mail for current delivery times. It is a brilliant instrument, and I owe a great amount of thanks to Dave Kriege for this extraordinary creation! No compromises. If you have limited hauling or storage capacity, (like the trunk of a small car) then this is the scope for you. Includes the virtual mirror box, mirror, and dust cover. We ship throughout the world via UPS. Secondary mirror heating system automatically senses the air temperature and the mirror temperature, then maintains the secondary at a preset (adjustable) temperature above the ambient air temperature to prevent dewing or icing. 12 volt cooling fan comes standard on all Classic and Ultra Compact scopes. Sky-Watcher - The worlds largest telescope manufacturer. Browse an extensive selection of astronomy equipment at Telescopes.net. All eight separate. PO Box 804 It performs among the giants in this industry. Watch for his next S&T article on exploring the Virgo-Coma galaxy cluster which will appear in the May 2011 issue. Low profile, Crayford type, 2 inch focuser, with 1-1/4 inch threaded adaptor for filters. Upper Tube Assembly weight (with Feathertouch focuser), Weight of heaviest component (includes 2 inch thick standard thickness mirror), 72 pounds. The Obsession 18" features the same quality craftsmanship and award winning design as found on our renown 20, 25, 30 and 36 inch telescopes. See the Accessories page for more info on these items. by Ernesto Gonzalo de Luis, NGC 4656 The entire scope is awesome. Don’t let its massive size fool … This keeps the cost low without having to compromise on the size or quality of the optics.

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