NPZ TAL-1 Instruction Manual
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NPZ TAL-1 Instruction Manual

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TELESCOPES
TAL-, TAL-M, TAL-2,
TAL-50P, TAL-50P8
Instruction manual


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Summary of Contents for NPZ TAL-1

  • Page 1 TELESCOPES TAL-, TAL-M, TAL-2, TAL-50P, TAL-50P8 Instruction manual...
  • Page 2 NPZ Optics State Corp. (Novosibirsk Instrument-making plant) D. Kovalchuk 79/2 Novosibirsk, 630049 RuSSIAN FEDERATION Fax +7 3832 26594 prinsib@sol.ru; www.npzoptics.com...

  • Page 3: Table Of Contents

    Table Of CONTeNTS Page General instructions....... . . 3 Technical specifications ......4 Inventory list .

  • Page 4: General Instructions

    GeNeral INSTruCTIONS Warning! Never observe the Sun directy through your telescope or its finder scope - permanent eye damage could result. The telescope is designed for visual observations of celestial  objects and for astronomical photography. It requires careful treatment and some knowledge of astronomy. Only in this case the use of telescope will bring satisfaction to its owner.

  • Page 5: Technical Specifications

    TeChNICal SPeCIfICaTIONS Specification Tal-1 Tal-150P Tal-150P8 Tal-1M Tal-2 aperture, mm focal length, mm 200 200 Mirror Surface spherical parabolic parabolic spherical spherical focal ratio 1:7.3 1:7.3 Diagonal mirror diameter, mm Telescope 32; 64; 32; 64; 48; 96; 30; 60; 48; 96;...
  • Page 6 Specification Tal-1 Tal-150P Tal-150P8 TAL-1М Tal-2 ° ° ° right ascension ° ° turning angle (24 h) (24 h) (24 h) (24 h) (24 h) Declination turning ° ° ° ° ° ±90 ±90 ±90 ±90 ±90 angle ° °...

  • Page 7: Inventory List

    INVeNTOry lIST Component Tal-1 Tal-150P Tal-150P8 TAL-1М Tal-2 Telescope finderscope: Polar axis finderscope equatorial mount: MT- with counter- weight 2.2 kg MT-C with counter- weight 2.2 kg MT-3S (MT-3S-2D) with counter-weight 2.2 kg (2 units) MT-3S (MT-3S-2D) with counter-weight 3.7 kg (2 units)
  • Page 8 Component Tal-1 Tal-150P Tal-150P8 TAL-1М Tal-2 Optional accessories: Tripod (1.25’’): Plössl eyepieces f’=6.3mm f’=12.5mm f’=17mm f’=20mm f’=32mm f’=40mm Super wide angle eye- pieces (1.25’’): f’=10mm (60°) f’=15mm (65°) f’=20mm (65°) Ultra wide angle eye- pieces (80°): f’=15mm (1.25’’) f’=20mm (2’’) f’=24mm (2’’)

  • Page 9: Construction Of The Telescope

    CONSTruCTION Of The TeleSCOPe The telescope consists of three  main parts: - Optical tube assembly (OTA) (), - German equatorial mount (2), - A pier or tripod (3). The optical tube is a basic component of the telescope. It includes all main optical units such as a primary mirror, a diagonal mirror and a focuser.
  • Page 10 To provide the smoothness of  TAL-1 telescope focuser, hold the left focus knob (1) with one hand and turn the right focus knob (2) clockwise (with a little effort) with other hand.
  • Page 11 Different models of telescopes are provided with different mounts. The mount MT-1 has manual slow- motion controls on both axes and is used with TAL-1 telescope. For the first sight-in on the object,  loosen the telescope s Dec. and R.A.
  • Page 12 M T- 3 S m o u n t i s u s e d w i t h telescopes with primary mirror diameter of 150mm and above. The mount head has a clock drive embedded, which enables tracking of celestial objects with user defined speed.

  • Page 13: Preparing Telescope For Observations

    PreParING TeleSCOPe fOr ObSerVaTIONS aSSeMblING The TeleSCOPe Take a pier (1) and legs (2) out of  the package. Attach tightly three legs to the bottom point of the pier using the captive screws. The pier must not swing on the legs. Place the pier on a firm plain ...

  • Page 14: Balancing The Telescope

    Place the finderscope bracket  (1) in the wedge slides for TAL- TAL-150P, and TAL-50P8 telescopes. Tal-1 and TAL-1M telescopes have finderscope bracket mounted directly on the OTA. Fix the finderscope with six thumbscrews (2). balaNCING The TeleSCOPe To provide a smooth motion of the telescope and reliable operation of equatorial mount drives, the balancing of the telescopes is required.

  • Page 15: Aligning The Finder Scope

    Keep in mind that if the telescope is not balanced properly, the clock drive periodic error will increase. alIGNING The fINDer SCOPe High magnification of the main telescope makes it difficult to find a required celestial object in the sky because of the small field of view. This is why the telescope is equipped with a low-power finder scope with a wide field of view.

  • Page 16: Power Supply And Hand Controller

    POWer SuPPly aND haND CONTrOller Warning! always connect power supply to the mount using the power cord with power supply disconnected from the power outlet. use only original manufacturer s power supply fuse or analogue (consult your dealer). always disconnect all the power, if replacing the power supply fuse.

  • Page 17: Polar Alignment

    For MT-3S mount connect the  hand controller to the socket (1). Then follow the same procedure as for MT-1C mounts. If the telescope is used in the  Southern hemisphere, the directi- on of the clock drive rotation must be changed.
  • Page 18 For visual observations point the R.A.  (polar) axis of the telescope towards. Polaris Polaris ( uMi). See the picture. α  With this level of pointing accurary, very little use of the Dec. slow- motion control is necessary for Ursa Major celestial objects tracking.

  • Page 19: Calibrating The Setting Circles

    CalIbraTING The SeTTING CIrCleS R.A. and Dec. axes have setting circles, which enable observer to locate an object in the sky by its celestial coordinates - right ascension (R.A.) and Declination (Dec.). Calibration of setting circles is done after polar alignment of the telescope. Level the Dec.

  • Page 20: Observations

    ObSerVaTIONS When using higher magnification not only the visible image size ap- pears larger in the telescope, but also blurring and distortion of the im- age, star twinkle, caused by atmosphere become more significant. To achieve maximum stability  of the visible image and best performance of the telescope, all parts of the telescope need to reach thermal equilibrium with...

  • Page 21: Visual Observations

    Use focus knobs to focus, when  changing eyepieces. Provided eye- pieces give several magnification options for an observer. Tal-1; Tal-1M Plössl f'=25 mm Plössl f'=10 mm Tal-150P Plössl f'=25 mm Plössl f'=7.5 mm Tal-2; Tal-150P8 Plössl f'=25 mm...
  • Page 22 For higher magnification, use Bar-  low lens with one of the eyepieces (see picture). 2 Barlow lens doubles magnification of the telescope. TAL-1; TAL-1М Plössl f'=25 mm, Plössl f'=10 mm, Barlow Barlow Tal-150P Plössl f'=25 mm, Plössl f'=7.5 mm,...

  • Page 23: Astrophotography

    aSTrOPhOTOGraPhy For astrophotography with TAL-  and TAL-1M telescopes mount a camera (1) on the camera holder (2), which is attached to the coun- terweight shaft. Fix the camera to the holder using the lock knob (3). As a long exposure is required for ...
  • Page 24 For astrophotography with TAL-2,  TAL-150P and TAL-150P8 tele- scopes use the same procedure as described above. However prime focus photography is also available when using M42x1 objective thread cameras (M42x0.75 thread camera adapter is also supplied with the telescope). For the prime focus setup unscrew ...

  • Page 25: Maintenance

    MaINTeNaNCe In order to keep telescope in good operating condition one should provide good care and maintenance for the instrument. Please note that lens or mirror surfaces should be cleaned as infrequently as possible, only when absolutely necessary. Optics self-cleaning only permitted after expiration of manufac- turer limited warranty! Keep telescope clean and protect it from any physical damage.

  • Page 26: Collimation (Alignment) Of The Optics

    COllIMaTION (alIGNMeNT) Of The OPTICS Collimation (alignment) of the optics is permitted only in case of absolute necessity, and after expiration of manufacturer limited warranty. In case of accidental mirrors misalignment or after cleaning optical parts, telescope collimation might be necessary. To inspect the view of the mirror ...
  • Page 27  the reflection of the secondary mir- ror with spider vanes will be out of center. For TAL-1 and TAL-1M collimation,  loosen the three small screws that lock the primary mirror (). Then adjust the tilt of the primary mirror...

  • Page 28: Storage

    STOraGe The telescope must be kept in a clean, dry (humidity must not ex-  ceed 80%), dust-free place with an ambient temperature between +5° and +40°C. Avoid collision and shaking of the telescope.  It is prohibited to store acids, alkalis, and any chemically active ...

  • Page 29: Precise Polar Alignment

    Appendix A Precise polar alignment for the MT-1 and MT-1C mounts For precise polar alignment for MT-1 and MT-1C mounts observe two bright stars in the west and in the east by turns, using the eyepiece f’=25mm with reticle. If during the observation of the star in the east it slowly shifts, so that you have to lower the top end of the telescope to follow it, then the northern (upper) side of the R.A.

  • Page 30: Mt-C Mounts

    Appendix B Double stars list for telescope image quality test Coordinates r. a. Declination Star Constellation 2000.0 2000.0 ° α Psc 4.3-5.3 .9" Pisces ° γ Cet 3.4-4.4 2.8" Cetus ° ζ Ori 2.0-4.2 2.5" Оrion ° α Gem 2.0-2.8 .8"...

  • Page 31: In The Northern Hemisphere

    Appendix C brightest stars visible in the Northern hemisphere Declination Visible r. a. Star Constellation 2000.0 magnitude 2000.0 0 h 08 m 2.07 m Alpheratz α And Andromeda °  h 09 m 2.07 m ° Mirach β And Andromeda 2 h 3 m .97 m Polaris...

This manual is also suitable for:

Tal-1mTal-2Tal-150p8Tal-150p

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