Light Gathering Power (Compared to human eye)ģ2mm (1.26") Ø, 4.6°, only minimal performance loss at edge of FOVĦ28mm (24.7") length | 235mm (9.3") diameterĪir-cooling system, integrated filter mount The key to the Ultra-Stable Focus System is two sets of precision bearings that are precisely aligned and tested during assembly to ensure optimal results. Focusing is easier, more accurate, and more stable than ever.
With the launch of the 8” RASA, Celestron is unveiling a new focuser design that mitigates lateral movement of the primary mirror when focusing, slewing, or tracking with the astrograph. Weighing only 17 lb, this optical tube pairs perfectly with a wide variety of mounts. In many cases, autoguiding will not be required. The 8” RASA’s relatively short 400mm focal length also lessens equatorial tracking demands. View images on a computer instantly that are brighter and more detailed than can be seen in much bigger telescopes with the naked eye.īecause shorter exposure times are possible, your equatorial mount won’t need to accurately track over extended periods.
When combined with sensitive cameras and the proper “live stacking” software, the 8” RASA can provide an almost real-time observing experience. Since it is an F/2.0 optical system, imagers can use shorter exposure times to capture detail in faint objects. Shorter Exposure Times and Virtual “Real-Time” Observing
The prime focus focal plane is located at the front of the optical system, so it cannot accommodate a traditional eyepiece. Purely designed for imaging, the 8” RASA cannot be used visually. It has many of the same thoughtfully designed features as its “big brother” RASA 11, including the integrated air-cooling system, internal filter mount, and sturdy CGE dovetail mounting bar. With the 8” RASA joining the lineup, a wider range of astroimagers can enjoy the benefits of the RASA design.
#CELESTRON RASA PORTABLE#
The latest addition to the RASA family, this 8” version is a much more portable and affordable version of the heralded RASA 11, which was introduced to much acclaim in 2014. It can capture stunning deep-sky astronomical images without the challenges typically presented by longer focal length instruments at a fraction of the cost of those systems. The 8” RASA is an imaging telescope that delivers a flat field without optical aberrations for razor sharp stars across a wide field of view. Weighing in at just 17 pounds, it’s easy to transport your 8” RASA to the most remote dark sky locations. Thanks to its fast focal ratio and patented optical design, you can produce sharp, detailed images and, in many cases, skip the autoguider completely. This incredibly fast f/2.0 system is the perfect companion to today’s color astronomical CMOS cameras, smaller CCD cameras, and mirrorless cameras.
#CELESTRON RASA FREE#
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