• <object id="oyun9"></object>

    <td id="oyun9"><option id="oyun9"></option></td>
      <object id="oyun9"><form id="oyun9"></form></object>
      <pre id="oyun9"></pre>
      <td id="oyun9"><strike id="oyun9"><ol id="oyun9"></ol></strike></td>
      <table id="oyun9"></table>
    1. Jiaxing Rui Xing Optical Instrument Co., Ltd 簡體中文版   English
      You are here: Home >>  Product >>  Reflector >>  SCA260 >>  View Details
      The launch of Sharpstar SCA260, a fast-focal-ratio aspherical Cassegrain astrograph, fills up the existing service gap in domestic market. SCA260 is designed with an aspherical mirror which entails much more sophisticated research and development. The process of producing, manufacturing and testing is more complicated compared with that of an ordinary reflective mirror.

      The telescope is wrapped with durable carbon fiber material, artistically enhancing its appearance while sharply decreasing its weight. Both the primary and secondary mirrors wear enhanced aluminum coatings, which ensure they can achieve a high reflectivity of more than 95%. The new-added adjustable bar on the secondary mirror makes the reflective mirror horizontally move. The 3" dedicated focuser with heavy-duty design has an extraordinary load capacity, and can be smoothly adjusted.
      The delicately pierced handle bar is completely made from CNC-manufactured aluminum, which can be used as a base for the attachment of other accessories. The new design of the telescope handle can aesthetically and mechanically cater to the demands of enthusiasts.
      A 3" corrector, featuring three-element lens structure, is laid in the optical path, enabling the whole optical system to better achieve full-frame imaging and control the vignette. The two-section thread design of the focuser prepares the telescope with popular M54×0.75 and M48×0.75 thread for most stock imaging devices and make sure the item in the objective lens can be perfectly projected onto the focal plane.
      Aperture size:260mm
      Focal length:1300mm
      Focal ratio:f/5
      Primary mirror type:aspherical reflective mirror
      Primary mirror material:PZ33(similar to Pyrex glass)
      Corrector:three-element air-spaced lens structure
      Minor axis:120mm
      Secondary mirror type:spherical reflective mirror
      Image circle:80mm
      Tube material:carbon fiber
      Tube outer diameter:280.5mm
      Tube length:712mm
      Tube weight:15kg
      Limiting visual magnitude:13.8
      Back-focus:75mm(start from the base of the M48 thread on the housing)

      NGC253 , ZWO ASI2600MM, Ha 180s x 20, RGB each 120s x 30
      Reggie Goh