NPZ TAL-65 Instruction Manual

Reflecting telescope

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TAL-65 REFLECTING
TELESCOPE
INSTRuCTION mANuAL


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Summary of Contents for NPZ TAL-65

  • Page 1 TAL-65 REFLECTING TELESCOPE INSTRuCTION mANuAL...
  • Page 2 NPZ Optics State Corp. (Novosibirsk Instrument-making plant) D. Kovalchuk 79/ Novosibirsk, 630049 RuSSIAN FEDERATION Fax +7 383 6594 prinsib@sol.ru; www.npzoptics.com...
  • Page 3: Table Of Contents

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

    Do not let children use telescope at daylight without an adult control.  The telescope TAL-65 (hereinafter referred to as the telescope) is designed for visual observations of celestial objects.  The telescope can be used for individual observations by ama- teur astronomers, in the schools, in the astronomic societies.
  • Page 5: Technical Specifications

    TeChNICal SPeCIfICaTIONS 65 mm  Aperture  Focal length 500 mm  Telescope magnification and angular field With eyepiece f’ = 5mm °5' х With eyepiece and Barlow lens 0°5' х With eyepiece, Barlow lens and plug 0°5' х  Resolving power .''  Limiting visual magnitude  Right ascension turning angle 360°...
  • Page 6: Inventory List

    INveNTOry lIST pos. Component Quantity Telescope Counterweight Eyepiece Barlow Lens Plug Black filter Instruction manual...
  • Page 7: Construction Of The Telescope

    CONSTruCTION Of The TeleSCOPe The telescope consists of optical  tube assembly (OTA) (), German equatorial mount (), a 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 8 The minimum 30 magnification is  obtained when the eyepiece is set into a focuser. Having established first the Barlow  lens and than the eyepiece, the 90 magnification is obtained. Having established the plug  into the Barlow lens, then the eyepiece, the maximum 30 magnification is obtained.
  • Page 9: Preparing Telescope For Observations

    PreParING TeleSCOPe fOr ObServaTIONS Take a telescope out of the package.  Release the clamp knob (); lay the OTA in the rings at about the midpoint of the tube’s length with and fix it with the knob. Release the handle on the latitude ...
  • Page 10: Balancing The Declination Axis

    balaNCING The DeClINaTION axIS Place the Dec. axis in the horizon-  tal position. Release the handle, that fixes the  Dec. axis. Slide the OTA forward or back in  the tube rings until balanced. Fix the Dec. axis. ...
  • Page 11: Observations

    ObServaTIONS The equatorial mount is designed  for pointing the telescope at the celestial objects and tracking their movement. The equatorial mount consists of  the polar axis (5) and the axis of declination (3). All operations of pointing OTA at ...
  • Page 12 Maximum magnifications help observing some details on the  Luna and planets, some double stars and the elements of star accumulations. Telescope’s mirror is very sensitive to abrupt temperature changes,  this is why let the mirror acclimatize first while observing outside in winter season.
  • Page 13: Collimation (Alignment) Of The Optics

    COllIMaTION (alIGNMeNT) Of The OPTICS As any other the primary mirror of a telescope needs collimation (alignment) from time to time*. This simple operation can be  performed by everyone. Remove the Barlow lens and the eyepiece out of the focuser drawtube and check the reflection of primary mirror in the secondary one.
  • Page 14: Maintenance

    MaINTeNaNCe In order to keep telescope in good operating condition one should provide good care and maintenance for the instrument. Improper cleaning of the aluminized mirrors can scratch their  coatings, so one should use blower bulb or special brush to remove dust from the surfaces.
  • Page 15: Storage

    STOraGe The telescope must be kept in a clean, dry (humidity must not  exceed 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 16: Acceptance Certificate

    CerTIfICaTe Telescope Tal-65, serial # __________________ Passed the product approval and found serviceable. manufacturing date __________________ Signatures _________________________ NPZ Optics State Corp. (Novosibirsk Instrument-making plant) D.Kovalchuk 79/ Novosibirsk, 630049 RuSSIAN FEDERATION Tel.+7 383 8383 Fax +7 383 6594 prinsib@sol.ru...

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