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Explore Scientific
Explore Scientific 12" Dobsonian
A serious light bucket that trades portability for the deep-sky views serious observers crave.

Top targets reported by owners
What you'll see
Saturn
ring detail, cloud bands, and Cassini division clearly visible; Titan and other moons easily resolve…
Jupiter
Great Red Spot, cloud festoons, and atmospheric detail pronounced; Galilean moons obvious
Orion Nebula (M42)
extensive nebulosity visible; trapezium stars resolved with detail in surrounding gas clouds
Andromeda Galaxy (M31)
dust lanes and galactic structure visible; dark absorbing clouds in the spiral arms seen under good…
Worth knowing before you buy
The primary mirror occasionally requires recollimation after transportation or temperature changes, with some owners reporting the collimation shifts more frequently than expected for a Dobsonian of this quality level.
The focuser can be difficult to achieve fine focus with, particularly at high magnifications, as achieving perfect focus position is overly sensitive to small knob movements.
The base/rocker box design leaves limited space for accessories and eyepieces when in use, making it cumbersome to organize or store items near the telescope during observing sessions.
Head to head
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Full Specifications
Optics
| Aperture | 305mm |
| Focal Length | 1524mm |
| Focal Ratio | f/4.99 |
| Optical Design | Dobsonian |
| Coatings | Parabolic primary mirror, fully coated |
Mount & Tracking
| Mount Type | Dobsonian |
| GoTo (Computerised) | No |
| Tracking | No |
Focuser
| Focuser Size | 2" |
| Focuser Type | Dual-speed Crayford (10:1 reduction) |
Physical
| OTA Weight | 22kg |
| Total Weight (with mount) | 34kg |
| Tube Length | 1500mm |
| Tube Material | Steel |
Included Accessories
| Eyepieces | 25mm eyepiece |
| Finder Scope | 8x50 right-angle finder |
| Diagonal | No |