| The premium, diffraction-limited optics of these heavy-duty
telescopes are manufactured to Celestron 's uncompromising standards. The star images are
classic textbook Airy disks. These telescopes are
mounted on the CG-4 mount, a very rigid German equatorial mount. A counterweight, latitude
scale, setting circles, and slow motion controls on both axes are standard, so you have a
fully loaded telescope right from the start.
This mount is the most rigid and stable type in its price
range. It features precision gears for extremely smooth motion.
The C150-HD uses a state-of-the-art optical design incorporating an auxiliary correction
lens to reduce aberrations, flatten the field and allow the tube length to be shortened --
and it is superior to most fast parabolas. |
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