Tal 250K 10 Inch Klevtsov with free DVD: £2764.03

With EQ6 Pro Skyscan GOTO Mount

Tal 250K 10" Scope:

Based on a novel optical design by Klevtsov, the versatile TAL-250K is the ideal instrument for the advanced amateur astronomer who desires high resolution and excellent light-gathering power (limiting visual magnitude 14) in a highly portable telescope.

The TAL-250K provides an aperture of 250mm and focal length of 2130mm in a very compact tube length of only 450mm. Klevtsov's revolutionary catadioptric design employs a sub-aperture meniscus correcting lens (like the familiar Maksutov) combined with a Mangin mirror-lens secondary. Its fast focal ratio of f/8.5, flat field, and excellent correction of coma, spherical aberration, and astigmatism (14 micron star images at a distance of 10mm from the optical axis!) make the TAL-250K a superb instrument for astrophotography, far surpassing conventional Schmidt-Cassegrain and Ritchey-Chretien systems. Every optical component must pass stringent tests. Interferograms on three axes of each optical set are retained by the factory's quality control department.

The telescope is supplied with an 8x50mm finder with a 7 degree field of view, an equatorial mount with motor drive in Right Ascension and manual slow-motion in Declination, two eyepieces of 25mm and 10mm focal length, and a 2x Barlow lens. At the customer's request, the mounting can be supplied either on a rigid metal pedestal or a hardwood tripod. A fitted wood carrying case is also included.

To comfortably observe objects near the zenith, a diagonal mirror which diverts the light path by 90 degrees is also supplied, as well as an adaptor for 35mm SLR cameras. All surfaces of the refractive elements have anti-reflection multi-coatings for maximum light throughput. The TAL-250K is a remarkbly compact, easy-to-use instrument that will meet the requirements of the most demanding amateur astronomer.

EQ6 Pro Skyscan Mount:

This Monster Mount will satisfy amateur astronomers seeking superior equatorial control and the ease of a precision computerized GOTO system, the EQ6 ProScan is your answer. The Sky-Watcher EQ6 ProScan is designed with the novice user in mind. With the user friendly pushbutton hand control, locating and viewing the treasures of the night sky becomes as easy as a walk in the park. The hand control allows you to point the telescope at a specific object or even tour the skies at the touch of a button. The user friendly menu system allows automatic slewing to over 13,400 objects. Even an inexperienced astronomer can master its variety of features in a few observing sessions. The EQ6 ProScan also comes with features that advanced astronomers can appreciate.

Positioning Accuracy up to 1 arc minute. Accuracy enhanced by software collimation error (mount mechanical error) compensation.
Stepper motors with 1.8° step angle and 64 micro steps driven.
Slewing speed up to 3.4°/sec (800X).
AutoGuider Interface for astro-photography.
Guiding speed selectable from 0.25X, 0.50X, 0.75X, or 1X.
Object database containing complete M, NGC, and IC catalogues.
Polarscope illuminator for easy use of the polarscope.
Minimal vibration for steady long-exposure photography.

Specifications:
Power Supply: 12 VDC 2Amp
Motor Type: Microstep driven 1.8° stepper motors
Resolution: 0.144 arc sec (or 9,024,000 steps/rev.)
Slew Speeds: 2X, 8X, 16X, 32X, 64X, 400X, 500X, 600X, 800X Gear Ratio:
Tracking Rate: Sidereal, Lunar, Solar.
Tracking Modes: Dual Axis, R.A. Tracking.
Alignment Methods: One-star Alignment, Two-star Alignment, Three-star Alignment.
Database: 25 user defined objects. Complete M, NGC, and IC catalogues. Total 13,400 objects.

Telescope Mounting: Tube Rings.
Mount Type: German Equatorial.
Tripod: 2in Diameter Stainless Steel Pipe.
Tripod Weight: 7.5Kgs
Tripod Height: 85-147cm.
Slow-motion Control: R.A. & Dec (motor controlled)
Counterweight Shaft Material: Stainless Steel.
Mount Weight: 16Kgs
Counterweight Shaft Daimeter: 1.8cm
Mount Height: 41cm

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