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TAL Klevtsov 250 f/ 8,5 OTA

 
Product No.: TAL250K-ota
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Shipping time: On special order
from 2.899,00 EUR
incl. 19 % Tax excl.
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TAL Klevtsov 250 f/ 8,5 OTA
TAL Klevtsov 250 f/ 8,5 OTA
TAL Klevtsov 250 f/ 8,5 OTA
TAL Klevtsov 250 f/ 8,5 OTA

First-class precision instruments based on Klevzov's original advanced optical system design, for the advanced amateur astronomer who desires high resolution and excellent light passing power in a highly portable telescope. The Klevzov-Cassegrain non-aspherical system presents a radical new form of catadioptric telescope that combines the compactness of the short cathadioptric-Cassegrain with similar enviable high resolution image quality and contrast of modern Maksutov designs. Klevsov's revolutionary catadioptric design employs a sub-aperture meniscus correcting lens, combined with a Mangin mirror-lens secondary. Their fast focal ratios, flat field and excellent correction of coma, spherical aberration and astigmatism (14 micron star images at a distance of 5,5 mm from the optical axis!!) makes these superb instruments for astrophotography, as well as for the observation of planets and deep-sky objects, with a photographical size of 10 - 15 arc minuites.


Download collimation instruction TAL 250K (pdf)

 

             























Jupiter

TAL 250 K witht 2,5x TeleVue Powermate (5325 mm Focal range)
DBK21 mit Astronomik-Filters
each 20 % from 1000 images with Giotto addied and sharpened
with Fitswork to RGB
(R. Schalow)



















TAL 250K  NGC891    6x4min.  
(R. Schalow
)
Full size here 



















TAL 250 K   Bubble-10x4min-Atik16HR
(R. Schalow)
Full size here

 


Tabellary Data:
Tecnical  Details TAL 250 K
Aperture Mirror 250mm
Tube length w/o Focusser  505 mm
Tube diameter Outside  275 mm
Focus length 2125 mm
Focal ratio f/ 8,5
Max. fotogr. Field 40 min
Max. vis. Field 33 min
Focusser 2" with 1,25" Adaptor
Finder 8 x 50 Deluxe / 8°
Obstruction
90 mm
Weight OTA 13,5 kg

 

 

 

 

 

 

 

 

 

 

 

 

 

 


 Accessoreis:
- Finder 8 x 50 Deluxe
- Losmandy 3" mount dove tail or Vixen/Synta

 



! Dieses Produkt kommt ohne Montierung. Passende Montierungen finden Sie hier
This Product was added to our catalogue on Tuesday, 23. September 2008.

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