Secondary adjustment is achieved via three spring-loaded knobs while the adjustment of the primary is accomplished by use of a specially supplied pole with a hex key at the end. With the scope assembled and collimated we inserted a low-power, wide-field eyepiece and started exploring the skies. This system has very easy to collimate primary and secondary mirrors, which is vital for instruments of this type. Click Here to register. Limited Warranty is one year, which converts to the Explore STAR Transferrable Product Warranty when product is registered within 60 days of purchase. Choose your book when you subscribe to BBC Sky at Night Magazine today! If you’re troubled by nearby lighting, though, you might want to consider rigging up a lightweight shroud around the truss poles to help keep out stray illumination. This is a Generation II telescope. The base box is made of aluminium panels riveted to an aluminium frame, making it a very light but sturdy unit. As the sky darkened we found the open clusters M36, M37 and M38, all three of which were sharp and high contrast. The entire structure has been optimized for maximum stiffness with minimal weight. We tested their Generation II 16-inch option, which has been upgraded recently to improve its mechanics. First, we found the Leo triplet, M65, M66 and NGC 3628, then some of the brighter ones in the Virgo cluster including the lovely, edge-on NGC 4762. A thin crescent Moon was low in the west as dusk fell and we had a lovely crisp and detailed view of the lunar landscape. The poles and the head are also aluminium, with steel only used for the secondary spider to give extra rigidity. We tested their Generation II 16-inch option, which has been upgraded recently to improve its mechanics. A 406mm mirror collects more than 2,400 times as much light as the naked eye. This 16-inch truss tube offering from Explore Scientific is shipped in one box, with the rocker and mirror box pre-assembled and the other components ready to fit together by way of thumbscrews. Explore Scientific - Generation II - 16-inch Truss Tube Dobsonian Telescope - DOB1645-00 Explore Scientific Description This is a Generation II telescope. The former was easy but the latter less so; it’s a tricky job requiring you to keep a good hold on the head, close to the heavier focuser, until all four truss tube pairs are securely connected with screw knobs. You can adjust both the secondary and primary whilst looking through the focuser, which is handy. Combine this with a big aperture and you have the potential for a great, user-friendly visual instrument, capable of revealing many thousands of deep-sky objects and pulling out detail and contrast in objects barely visible in smaller scopes. This Explore Scientific 16" Generation II Ultra-Light Truss Tube Dobsonian Telescope is their very best 16" Dobsonian telescope. To speed things up, two 12V fans sit in the side of the mirror box, one wired to suck and the other to blow. Later, the globulars M13 and M3 were well resolved and the session rounded off with a nice view of Jupiter low in the southeast sporting several darker belts. Primary mirror stores in a self-contained housing with lid Although the scope movement was smooth and easy thanks to its low-friction PTFE-on-glass-board bearings, it was perhaps a little too low-friction when it came to altitude. The mirror has a well-designed support system and two rollers at the bottom edge to support the mirror weight at low altitude. The mirror box uses similar build principles and even with the 14kg mirror inside it, it is not too difficult to lift the whole bearing box in and out of the base when you’re setting up or breaking down the scope. For a 16-inch scope, it’s more transportable than you might expect. The scope is ready for the use with our optional coma corrector. With these attached, the rest of the assembly involved fixing the truss poles to the mirror box and then attaching the head to the pole tops. A sturdy 16-inch reflector that’s surprisingly easy to transport and assemble, Price: £2223.00Aperture: 16-inch (405mm)Focal Length: 1,825mm, f/4.5Weight: 40kgSupplier: Telescope HouseTelephone: 01342 837098Website: www.telescopehouse.com. The well-made metal truss poles are in four hinged pairs, reducing the number of parts you have to transport and speeding up the process of fixing the mirror box to the head. … Bright star clusters are resolved to the core, and the sight of the terminator on the moon is an unforgettable experience. What concerns me is the term 'BK 7 like' as if glass is a BK 7 clone ? This review originally appeared in the July 2018 issue of BBC Sky at Night Magazine, Explore Scientific Ultra Light 16-inch Dobsonian Generation II review, Explore Scientific Ultra Light 16-inch Dobsonian Generation II, Milky Way bulge imaged in survey of 250 million stars, 6 deep-sky objects to observe around Polaris, Orion SkyQuest XT8 PLUS Dobsonian telescope review, SkyWatcher Skyliner-250PX FlexTube review, Sky-Watcher Heritage 100P Tabletop Dobsonian review. Briefly:It arrived, Ive had it assembled (didnt need to tap any threads), taken some piccies, and now have to go to work for a couple of hours. Explore distant galaxies and nebulae in minutes. A 16-inch scope is a big piece of equipment and often back-wrenchingly heavy. All updates have been performed on this telescope. This meant the balance had to be just right or the scope would rise or fall on its own depending on what altitude you were at. It also helps reduce the likelihood of the optics dewing up in damp conditions. Taking the 1.25-inch adaptor out allows 2-inch eyepieces to be used. Explore Scientific produces a range of elegant lightweight truss tube Dobsonian reflectors with mirrors ranging in diameter from 10-inch, to a whopping 20-inch. Any snags with the 'scope apart from those previously hinted at ? Explore Scientific 16" Truss Tube Dobsonian. 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. Once we’d unbundled it, we started assembly but were soon scratching our heads. Page 16: Warranty Just joined the Forum after reading this thread and considering possible purchase ES 16" DOB but discussion herein seems to have halted? Explore Scientific produces a range of elegant lightweight truss tube Dobsonian reflectors with mirrors ranging in diameter from 10-inch, to a whopping 20-inch. Dobsonian reflectors on their large, stable altaz mounts are very popular among visual observers who love their ease of use and quick set-up times. EXPLORE SCIENTIFIC 16" Dobsonian - [ IMPORTED ON ORDER ] D=406 / F=1826mm 2nd Generation Truss Tube 'Ultra Light' Dobsonian Telescope 2,10,000 + 18% GST Ultra Light Dobsonian 406mm GENERATION II - with completely redesigned and improved construction. Although the Explore 16-inch is a big aperture scope, its design makes it relatively simple and lightweight to assemble and use. © 2020 Explore Scientific LLC. Nowhere do you get as much light for your money like a good Dobson. We tested their Generation II 16-inch option, which has been upgraded recently to improve its mechanics. Download Instruction Manual for EXPLORE SCIENTIFIC 16" Truss Dobsonian in .PDF format The following items are FREE with the telescope listed above. 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