QUATTRO-8CF

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. Quattro 8" tube interiors have knife-edge ray traced baffles.

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

note: equatorial mount not included