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TAL-200K Klevtsov's


Telescope


A new 200mm catadioptric telescope developed on the basis of Klevtsov’s original design is a perfect device for advanced amateur astronomers! It allows observing celestial objects with high resolution and pellucid capacity up to 13.5 star magnitude and making wonderful photos!

The Telescope is equipped with a 50mm finderscope of 8x and 7° field of view, two Plossl eyepieces (25mm and 10mm focal length), 2x Barlow lens, Sun filter and 35mm SLR camera adapter with conjunctive screws M42x0.75 and M42x1. For easy observation of celestial objects near by zenith the optical axis of the tube is turned by 90° with the help of a diagonal mirror situated in front of the eyepiece. Telescope has a multi-coated optics. A short tube and the lightweight of the telescope make it easy and convenient in operation.

TAL-200K is completed with an equatorial mounting MT-3S, which can be put on a metal pier or a tripod. A clock drive provides a continuous observation of any object. The supply unit can be connected to the electric circuit 220 or 110V. You can purchase additionally a 10-meter flex to connect your telescope to a car power supply 12V.

Klevtsov’s optical design is covered by a patent of the Russian Federation and described in literature. It can be compared with Maksutov-Cassegrain or Schmidt-Cassegrain systems, but has some very important peculiarities. That is a combination of corrector lens of small diameter and Mangin lens as a basis for a second mirror to prevent permanent aberrations of the primary spherical mirror.

The system is well adjusted, but in case of necessity you can use the adjustment screws of the primary mirror. Telescope TAL-200K is easily and quickly prepared for work – its open tube gets the temperature of environment very soon.

Awards:
1. TAL-200K is a prize-winner of the program “100 best products of Russia” in 2001.
2. In 2003 it gained a golden medal of Russian-American Chamber of Industry and Commerce. (ARCCI), Washington, 2003.

Specifications

Aperture, mm 200
Focal length, mm 2000
Focal ratio 1:10
Resolving power 0.6"
Limiting visual magnitude 13.4m
Magnification, min 80x
Magnification, max 400x
Optical scheme Klevtsov
Angular photographic field 40' (23.3mm)
Angular visual field, max 31'
Angular visual field, min 6.3'
Central obstruction area, % 12
Length of tube, mm 550
Range of slow-motion control on the axes within ±360°
Latitude range of mounting 0...70°
Focuser 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, mm 950x920x1320
Dimensions of the plywood case OTA, mm 880x600x300
Weight of the tube, kg 12
Weight of the telescope, kg 30
Weight of the telescope packed, kg 52

Optical train of telescope

Optical train of telescope.

Ocular and focuser of the TAL-200K telescope     The tube of the TAL-200K 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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