OPT 8" f/9 Planetary Dobsonian Telescope
We started with the most important part of any telescope...the optics. Our diffraction-limited 8" f/9 primary mirror is made in the USA of Pyrex, and is multi-coated for bright, sharp images of the planets, the Moon, and deep-sky objects. The mirror is center-marked.
The secondary mirror is small, with a mere 15.6% obstruction, to increase the contrast, and the spider is curved to eliminate diffraction spikes on bright stars and planets. The tube assembly is made up of two thermally stable Sonotube sections (upper and lower), and they are held in place with four truss poles. A truss tube carry bag is included with your OPT Planet Pro Dobsonian, and so is a light shroud and dust caps.
The Dobsonian base is made of Baltic Birch, and comes with real Ebony Star and Teflon bearings for smooth motions across the sky. The telescope comes with adjustable side bearings to allow the balancing of heavy eyepieces.
The focuser is a 2", two-speed Crayford-style model with compression ring fittings, and comes with a 1.25" adapter. Other accessories include a Telrad finder, 2" 30mm SuperView eyepiece, and as mentioned earlier, dust caps, light shroud, and truss carry bag.
OPT 8" f/9 Planetary Dobsonian Telescope Specifications...
- Tube Diameter is 9.5"
- Tube Length in Travel Mode - 40.25"
- Tube Length in Observing Mode - 76"
- Tube assembly weight is 31 pounds
- Mount Weight - 21 Pounds
- Dimensions - 28.25 x 22 x 16 inches
|Telescope Series||Discovery PDHQ|
|Optical Design||Newtonian Reflector - Open Truss|
|Mount Type||Dobsonian Cradle|
|Warranty||1 Year Warranty|
|Telescope Focal Length||1828mm|
|Telescope Focal Ratio||f/9|
|Limiting Stellar Magnitude||14|
|Tube Color or Finish||OPT Deep Ocean|
|Eyepiece(s) Included||30mm SuperView|
|Optical Tube Weight||31 lbs.|
|Total Telescope Weight||52 lbs.|
|Length of Optical Tube||76"|
- OPT 8" f/9 Planetary Dobsonian Telescope
- 2" 2-speed Crayford Focuser
- 1.25" Adapter
- 30mm SuperView Eyepiece
- Dust Caps
- Truss Carry Bag
- Light Shroud