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Skywatcher 12" Dobson BK-7

 
Product No.: 50-44000
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Shipping time: 3-4 Days
from 899,00 EUR
incl. 19 % Tax excl.
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Skywatcher 12

These instruments offer an incredible aperture-to-price ratio. The Dobsonian mount, is a very simple but effective method of mounting a Newtonian Reflector, based on the alt-azimuth principle. 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. Tube material: Aluminium

The telescope has two handy carryes wich allow to handle and adjust the tube in each attitude.
The serial Crayford 2" Focusser with the 1,25" Adaptor works very smooth. It guarantee a shifting free sharp focussing.

 

 

 

Die wichtigsten Daten auf einen Blick:
Aperture 305 mm
Focal length
1500 mm
Focal ratio
f/ 5
Mirror parabolic BK-7
REzolution power
0,46 arc sec.
Diameter secondary
70 mm
Obstruction 23,3 % linear
Focusser 2" Crayford w 1,25" Adapt.
Mirror Aluminized and coated
Finder 9 x 50
Weight 38 kg

 

 

 

 

 

 

 

 

 

 

 

 


Accessories.
1 Eyepiece 1,25" - 25mm
1 Eyepiece1,25" - 10mm
Rockerbox
Tools


This Product was added to our catalogue on Thursday, 25. September 2008.
 
 

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