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Model: 0116940Brand: Explore Scientific
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The Explore Scientific Ultra Light 16" Dobsonian is the ultimate in collapsible, large aperture, portable telescopes - featuring full aluminium construction for strength, durability and lightness. This system has very easy to collimate primary and secondary mirrors, which is vital for instruments of this type. The whole telescope folds and packs down into a couple of very compact packages, the main mirror box has a hinged lid for protecting the primary in transit, but also forms an integral part of the structure of the telescope in use. Getting up and observing is a simple procedure: fit the struts and altitude bearings to the main mirror box, fit the Secondary/Focuser head to the support struts, collimate - and you're ready to observe. The Explore Scientific Ultra Light 16" Dobsonian's focuser is a buttery-smooth dual speed low profile Crayford-style/Rack and Pinion Hybrid, capable of supporting the weight of heavier 2" eyepieces and accessories. With 16" or 405mm of pure aperture available, familiar Deep Sky really come to life and a wealth of objects outside the remit of smaller instruments are all within your reach. Planetary and Lunar resolution at this aperture have to be seen to be believed!
Explore Scientific Ultra Light 16" Dobsonian Specifications:
Material OTA MetalPower supply for fans 12V Batteries or mains adapterOptical design Newtonian ReflectorMount type DobsonianMagnification up to 800 (normally x250 under reasonable sky conditions)Field of application Deep Sky Observation, Lunar observation, Planetary observationMaterial Primary mirror BK-7Primary mirror diameter (mm) 406Secondary mirror diameter (mm) 88Objective diameter (mm) 406Focal length (mm) 1826Aperture ratio 4.5Obstruction (%) 25Angular resolution (arc seconds) 0.32Transportability very goodFocusing system 2" Rack-and-Pinion Focuser with helical gearing and 10:1 reductionFinderscope LED-Red Dot FinderColour blackRain/Dust protection caps Dust protection caps for open aperture and eyepiece holderMount Type DobsonianWarranty 3 (Years)
Dimensions for mobile use: Rockerbox 550mmx550mmx330mm; Mirrorbox 480mmx480mmx300mm; Trusses approx. 1250mmEyepiece Height while pointing at zenith approximately 1.63m. 16“ Total net weight: 38.4 kg; 16“ Mirror Box: 23.8kg; 16“ Secondary Cage + Rockerbox: 10.5 kg; 16“ 4 Truss pairs: 2.5kg; 16“ Altitude Wheels: 1.6kg
Stepped up from my 12 inch scywatcher dob. Never used a non electronic mount before so was a little nervous. But no need. This scope is so well balanced it is so easy to keep the object centralised with a nudge. No lining up to stars, no horizontal or vertical only movement - just turn up cool down and move it. The optics Re excellent. Things I struggled to see with a 12 inch are easily see and the usual DSOs are so much brighter. The difference between 12 and 16 inch is well worth the cost. Finally Collimator is incredibly simple! Love it!
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