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. 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: Models feature paraboloidal primary mirrors made of low thermal expansion Pyrex glass resulting in substantially shorter cooling-down times.
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.
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
Please note - image shows the CF version
Related Products:
SkyWatcher HEQ5 PRO SynScan GOTO Equatorial Mount & Tripod £789.95 For amateur astronomers seeking superior equatorial control and the ease of ... More info... | SkyWatcher Guidescope Mount £129.00 Features full precise alt azimuth controls for quick and accurate alignment ... More info... |
SkyWatcher SynGuider Autoguider £233.00 The SynGuider can guide an equatorial mount without the help of ... More info... | Canon EOS T Ring £14.99 The Canon EOS T Ring allows you to connect your Canon ... More info... |
