Hi All,
I have
this scope for sale.
10" - 254mm Collapsible Dobsonian Sky watcher
Comes with all the lenses etc and an extra x2 barlow lense
PICKUP from Melbourne south eastern subs ONLY
Price $750
Contact -
GAS747@gmail.com or private message here.
Thanks.
http://u-shop.com.au/DesktopModules/...jpg&PORTALID=0
Quote:
A collapsible truss-tube Dobsonian design that requires no reassembly. with greater portability, it's the ultimate convenience!
SkyWatcher does it again. An old favorite gets a complete facelift with new features and upgraded components!
The venerable Dobsonian reflector design has recently undergone some important upgrades and improvements: SkyWatcher is pleased to introduce the all-new Collapsible Dobsonian complete with Crayford focuser – the ultimate in large aperture portability and performance.
This elegant truss tube design was carefully engineered to combine ease of use, extreme portability and consistent performance in an affordable package. Unlike other truss tube designs, the Sky-Watcher collapsible Dobsonian doesn't need to be disassembled between uses. It transports as two compact pieces that can be assembled and ready to use in just seconds! It is easy to collimate once set up, and it holds its collimation throughout the evening!
The bearing system has been redesigned and features smooth moving Teflon bearings for accurate tracking. Like our traditional Dobsonians, the collapsible Dobsonians feature Sky-Watcher’s patented tension adjustment control on the altitude bearings. This eliminates the need and added cost of clumsy counterweight systems to balance the telescope.
The secret of the design is to correctly balance the optical tube with special designed handles on the base. The design adds enough friction and tension to allow the tube to move easily when nudged but to stay in position when not. Users can easily add or reduce tension by turning on the handle. This feature solves the common balance problem found on many Dobsonians.
To top it off, all of the collapsible Dobsonians are shipping with ultra smooth Crayford focusers.
Specifications:
- Newtonian parabolic optical design
- 254mm (10") diameter
- 1200mm focal length
- 58mm diameter secondary mirror
- f/5 focal ratio
- 508x highest practical power
- 14.7 faintest stellar magnitude
- 0.45 resolving power
- 8x 50mm finderscope
- 2" focuser with 1.25" adapter
- 2 x 1.25" Super Plossl eyepieces
- 380 x 800 - 1120 tube dimensions
Skywatcher's Dobsonians are an affordable alternative and very popular with amateur astronomers of all levels. The 1200mm focal length allows better eyepiece selection to achieve high magnifying power.
The 254mm (10") model includes the feature-tension control handle.
All models have a paraboloidal primary mirror to eliminate spherical aberration and a four-arm, secondary- mirror bracket with fine supports (0.5mm thick), to reduce diffraction spikes and light loss. In addition, all models include a 2" focuser with a 1.25" adapter, allowing the use of either eyepiece size.
*Please note: the image shows a right angle finderscope. This item is sold separately and not included with this product. The finderscope supplied is a straight-through model.
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