SkyWatcher Skyliner 250 PX Classic 10" Dobsonian Parabolic Telescope #10668 

Brand New UK Stock, boxed with full Guarantee

SkyWatcher-Skyliner-250-PX-039-Classic-Dobsonian-039-Parabolic-10-034-Telescope-10668

Sky-Watcher Skyliner-250PX Classic 254mm (10") f/1200 Parabolic Dobsonian Telescope. These instruments offer an incredible aperture-to-price ratio. Popularized by John Dobson in the late 1970's, is a very simple but effective method of mounting a Newtonian Reflector. Fast and easy to set up, the Dobsonian mount consists of a box-type mounting which allows the telescope to pivot in altitude, while the box itself is rotated on a base in azimuth. The secret of the design is to correctly balance the optical tube and to use frictional materials, which allow it to move easily when nudged but to stay in position when not. The mount is designed to be driven by hand as opposed to slow motion controls. All Sky-Watcher Dobsonian models feature 0.5mm Ultra-Thin Secondary Mirror Supports to reduce diffraction spikes & light loss, and high quality Paraboloidal primary mirrors to eliminate spherical aberration. 

The SKYLINER 250PX model features Paraboloidal primary mirrors made of Low Thermal Expansion Pyrex Glass resulting in substantially shorter cooling times.

Sky-Watcher Dobsonians feature a unique patented Tensioner/Carrying handle. By lifting the handles together, you can easily carry the whole unit in an upright position with the help of a friend.

  • Magnifications (with Eyepieces supplied): x48 & x120
  • Eyepieces Supplied (1.25"): 10mm & 25mm
  • Highest Practical Power (Potential): x508
  • Diameter of Primary Mirror: 254mm
  • Telescope Focal Length: 1200mm (f/5)
  • Dual-Fit 1.25"/2" Focuser
  • Parabolic Primary Mirror (Pyrex Glass)
  • 0.5mm Ultra-Thin Secondary Mirror Supports
  • 9x50 Finderscope
  • Direct SLR Camera Connection
  • Wooden Alt-Azimuth Mount with Accessory Tray
  • 56% more Light Gathering than 200mm
Specifications

Optical Design

Parabolic Newtonian

Diameter (mm)

254

Focal length (mm)

1200

Focal Ratio (f/)

5

Highest practical magnification (x)

508

Mount type

Standard

Power source

NA

Eyepiece 1

10 mm

Eyepiece 2

25 mm

Magnification with eyepieces supplied (x)

48, 120

Finderscope

9x50 Finderscope

Diagonal

None

Optical tube length (mm)

0

Optical tube weight (Kg)

0

Tripod weight (Kg)

0

The Photography Shop & Photo Express Delivery Information

FREE Fedex 24 & 48 Delivery to Zone 1 Areas

 

 

Free to England, Wales and parts of Scotland, excluding Highlands and Islands, Isle of Man, Northern Ireland & Isle of Wight

Parcelforce Express 24 & 48 to the following areas

Isle of Wight (Postcodes PO30-41) = £6.50 Extra


Zone 2 = Highlands & Islands of Scotland = £10 Extra

(Postcodes IV, HS, KA27-28, KW, PA20-80, PH17-26, PH30-50, ZE)


Zone 3 = Northern Ireland, Isle of Man, Scilly Isles = £15 Extra

(Postcode BT, IM, TR21-25)

 

Saturday AM delivery = £15 Extra to all of the above.

 

PLEASE NOTE PARCELFORCE EXPRESS 24 NOT AVAILABLE TO SOME ZONE 1,2,3 & I.O.W ADDRESSES, THUS EXPRESS 48 WILL BE USED.