Camera Centre

The new QUATTRO series with their fast f/4 focal ratios, have been specially designed for high quality astrophotography with short exposure times. They are of course also fine telescopes for visual observations.

Two versions of the QUATTRO-8 OTA's are available:

QUATTRO-8S with Steel Tube
QUATTRO-8CF with Carbon Fibre Tube (illustrated)

CARBON FIBRE TUBE (QUATTRO-8CF only): Carbon fibre is a strong and lightweight material and has much better thermal stability compared to a steel tube. This is especially important for astro-photographers dealing with long exposure times. Imaging telescopes made of less thermally stable material can deviate from optimum focus after long time exposures. With a carbon fibre tube, it can remain in focus for a longer period of time and long exposure images will stay clear and in focus.

2" DUAL-SPEED LINEAR POWER FOCUSER (both models): The new linear power focuser utilises 4 precision ball bearings to support the drawtube and provide great stability and zero image shift while supporting a heavy eyepiece or camera. Moving the drawtubeby the roller rather than a rack and pinion ensures exceptionally smooth operation, great feel and precise adjustability. The dual-speed feature has a second focus knob that has a 10:1 speed reduction to provide the super-fine adjustments even the most demanding users can appreciate.

PYREX MIRRORS: Both models feature paraboloidal primary mirrors made of low thermal expansion Pyrex glass resulting in substantially shorter cooling-down times.
 

Standard Specification:

  • Highest Practical Power (Potential) x410
  • Diameter of Primary Mirror 205mm
  • Telescope Focal Length 800mm (f/4)
  • Note: Eyepieces NOT supplied
  • 9x50 Finderscope
  • Parabolic Primary Mirror (Pyrex)
  • 2" (50.8mm) Dual-Speed 10:1 Linear Power Focuser
  • Tube Rings & Dovetail Bar
  • 0.5mm Ultra-Thin Secondary Mirror Supports
  • 77% more Light-Gathering than 150mm