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Explore Scientific 12" Truss Tube Dobsonian - Generation II - DOB1245-00

SKU: EXS-DOB1245-00
$1,799.99 $1,499.99
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Explore Scientific 12” Truss Tube Dobsonian - Generation II

  • 12” f/5.2 Dobsonian is lightweight and portable due to its unique design
  • Primary mirror stores in a self-contained housing with lid
  • Secondary cage fits in rocker box for storage
  • Two fans allow the primary to come to temperature quickly
  • 2” helical geared, dual speed focuser has 10:1 reduction
  • Comes with LED red dot finder and a handy collimation assist tool
  • Heaviest component is 50.5 pounds, total weight 66.2 pounds

The 12” Explore Scientific Dobsonian is an ideal workhorse for deep sky observers. A 305 mm mirror collects more than 1,800 times as much light as the naked eye. Details on planets and deep sky objects will be visible even for inexperienced observers. Bright star clusters are resolved to the core, and the sight of the terminator on the Moon is an unforgettable experience. Bright wide views at low power can capture more than one deep-sky object in the field!

Disassembly of this 12-inch Dobsonian telescope without tools ensures a trouble-free transport of this large aperture telescope, even in small cars. The entire structure of the Explore Scientific Dobsonian has been optimized for maximum stiffness with minimal weight. The combination of high altitude bearings with optimized aluminum structures allows fine adjustment flows at high magnifications. The combination of high altitude bearings with optimized aluminum structures allows fine adjustment flows at high magnifications.

The Explore Scientific 12-inch Dobsonian telescope includes a 2" dual-speed focuser with helical gearing and 10:1 reduction, an LED Red Dot Finder, a collimation assist tool (see extra images for a view of the collimation assist tool in action), a soft light baffle to keep stray light from dampening contrast at the eyepiece, and two radial main mirror fans for fast temperature equilibrium. An optional coma corrector is available separately.

Explore Scientific 12” Truss Dob Specifications

  • Telescope Type: Truss Tube Dobsonian
  • Aperture: 12”
  • Primary Mirror Diameter: 305mm
  • Secondary Obstruction: 24%
  • Focal Ratio: f/5.2
  • Focal Length: 1525 mm
  • Focuser: 2” Dual Speed with Helical Gearing
  • Finder: LED Red Dot Finder
  • Primary Mirror Weight: 50.5 lb.
  • Rocker Box Weight: 15.7 lb.
  • Total Weight: 66.2 lb.