Name: Flextube 250P COLLAPSIBLE DOBSONIAN
SKU: SWDOB250C
Price: 999.00 AUD
Availability: InStock

Flextube 250P COLLAPSIBLE DOBSONIAN

Collapsible Dobsonian with 3-Points Tube Locking System
No Disassembling or Collimation is required between uses
Dobson Wooden Mount with Tension Control System and Accessories Tray
Diffraction Limited Parabolic Mirror
Ultra Thin Secondary Mirror Support (only 0.80 mm)
Backed by 5 Years Sky-Watcher Limited Warranty

Description

Sky-Watcher Flextube 250P Collapsible Dobsonian Telescope

The Ultimate Light Gatherer

The Dobsonian telescopes are named after John Dobson, an amateur astronomer who designed a very simple but effective telescope, where the key factor is a large aperture for little money. His idea was to mount a Newton telescope on an easy-to-use alt-azimuth mount that does not need time-consuming alignments. Sky-Watcher improved the Dobson design building a collapsible system that allows the telescope to be easily stored or transported. The 3 metal bars, used to fully extend the tube, have an auto-lock spring loaded system that simplify the set up of the telescope so only one person is required to fully extend the tube. The rigidity of the telescope keeps the mirrors collimated and the tension control system keeps the telescope balanced, so it is not necessary to move heavy counterweights.

Just extend the tube, use the finderscope and point the telescope towards your favourite night sky objects – sit back and enjoy the great light gathering of the Sky-Watcher Dobsonian!

To top it off, the Sky-Watcher Collapsible Dobsonians are equipped with a 2″ Crayford focuser and focuser locking screw.

Accessories in the Box:

Finderscope 9X50 straight version
Eyepiece 1.25″ Super Plossl 25mm (48x) – apparent field of view 52°
Eyepiece 1.25″ Super Plossl 10mm (120x) – apparent field of view 52°
Eyepiece adapter from 2″ to 1.25″ with M42 thread
2″ tube extension
User Manual

Download the Collapsible Dobsonian Manual

SPECIFICATIONS

Model	SWDOB300C
Optical Design	Newtonian (parabolic primary mirror)
Aperture	254mm (10″)
Focal Length	1200mm
Focal Ratio	f/4.7
Secondary mirror diameter	58mm
Obstruction	22.8%
Resolving Power	0.47″
Stellar Limit Magnitude	15.1
Highest Practical Magnification	508X
Light gathering power (compared to the unaided eye)	1317X
Focuser	2″ Crayford with 1.25″ adaptor
Telescope tube length	805mm-1120mm
Telescope height	1390mm
Base diameter	520mm
Telescope tube weight	14kg