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TAL-250K Klevtsov's


Telescope


A new 250mm telescope to be developed on the basis of Klevzov's original optical system is a perfect device for learned amateur astronomer. It provides a high resolution of observed celestial objects having a pellucid capacity up to 14m and to allow making a photography.

Specifications

Aperture, mm 250
Focal length, mm 2130
Focal ratio 1:8.5
Resolving power 0.5"
Limiting visual magnitude 14m
Magnification, min 80x (f=25mm)
Magnification, max 400x (f=10mm)
Optical scheme Klevtsov
Angular visual field, max 33' (f=25mm)
Angular visual field, min 13' (f=10mm)
Central obstruction area, % 12.5
Length of tube, mm 450
Range of slow-motion control on the axes within ±360°
Latitude range of mounting 0...70°
Focuser 2"/1.25"
Magnification of the finderscope 8x
Angular field of finderscope
Voltage of the supplying mains, V 220 (110) ±10%
Current frequency, Hz 50 (60)
Output voltage of the supply unit, V 12
Dimensions of the plywood case OTA, mm 670x340x360
Weight of the tube, kg 15.7
Weight of the telescope, kg 48

Optical train of telescope

The optical scheme of a telescope

Optical scheme of TAL-150K telescope: primary mirror part

Primary mirror part.

  Corrector

Corrector. 1 - cell; 2 - Mangin mirror-lens secondary; 3 - meniscus lens; 4 - padded ring; 5 - spring; 6 - threaded retaining ring; 7 - cover plug.


contact information

Phone:
007(383)216-08-76
007(383)226-07-65
Phone/Fax:
007(383)226-15-94
179/2, D. Kovalchuk str.,
Novosibirsk, 630049, Russia

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branches in Russia

St. Petersburg:
spb@npzoptics.ru
Moscow:
msk@npzoptics.ru

customer service

Questions:
info@npzoptics.ru
Quality and service:
service@npzoptics.ru
Sales in Russia:
salesru@npzoptics.ru
Export operations:
sales@npzoptics.ru

technical support

admin@npzoptics.ru
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