250 Mewlon Crs

New version Mewlon dedicated all'astrofotografia deep sky in high resolution !!!

The new Mewlon CRS has the same checker AND three elements Series CR-field completely flat and correct on the circle of well 40 mm .

In addition to this, the CRS has Mewlon some technical details dedicated to those who want to get the most in the second half in high resolution of deep sky objects:

• Fans acclimation to low vibration on the breech of the primary mirror < / li>
• Temperature sensors on the primary, inside and outside of the tube to monitor the process of acclimatization thermal instrument
• Motor focus on secondary
• Control box for fans and manual focus
• Auto Focus ActiveFocus controlled by ASCOM driver for seamless integration with software for astronomical fire control
• Support for reducer focal 0,73x and 1.5x extender for a great versatility of use

  The standard equipment also includes rings with top plate accessory, portEyepiecei 2 "" and pipe extension, support for seeker and seeker 7x50 illuminated with 4.2 ° field

  Specifications

  • Optical design: Dall-Kirkham with concealer AND 3 element < / li>
  • Useful diameter: 250 mm
  • Focal Length: 2500 mm
  • Focal Ratio: F / 10
  • Resolving power: 0:46 "" < / li>
  • optical tube diameter: 280 mm
  • optical tube length: 985 mm
  • Weight OTA with accessories as standard: about 12 Kg
  • image circle: 40 mm (0.92 °)
  • Metal back distance: 115.5 mm

    Technical-reducer with CR 0.73 x

    • Focal Length: 1,835 mm
    • Focal Ratio: F / 7.3
    • Circle picture: 35 mm (1.1 °)
    • Metal back distance: 72.8 mm

      Technical CR-extender with 1.5 x

      • Focal Length: 3780 mm
      • Focal Ratio: F / 15 < / li>
      • Circle picture: 44 mm
      • Metal back distance: 117.5 mm "