WARNING: The HyperStar C9¼ system will only work properly with telescopes that come as compatible with Fastar systems from the factory. To determine if your C9¼ is compatible verify that the front of the secondary is as shown in the image below
The HyperStar for C9¼ has been designed based on the innovative Fastar feature of CELESTRON's traditional SC tubes. This feature allows easy removal of the secondary mirror from CELESTRON Schmidt-Cassegrain telescopes that are compatible with Fastar systems (indicated on the front of the tube, just in front of the secondary mirror). By installing the HyperStar lens in its place, a CCD camera can be attached to the front of the telescope allowing a wider field image to be captured and the possibility of much brighter astrophotography.
Removing the HyperStar to return to the telescope's original f/10 setting is simple and quick. It only takes a minute or two, does not require the use of tools, and since the secondary mirror has a marking that makes its position unique, the telescope does not need to be recollimated.
The HyperStar lens system works with a wide variety of cameras, such as the ATIKoRION, MEADE, MALLINCAM, SBIG, STARLIGHT XPRESS and many more. Each camera may require a different coupling adapter to preserve the HyperStar's critical backfocus distance.
An adapter is included with the order of a HyperStar system. Please specify the camera to be used at the time of ordering.
A stand is included so that the secondary mirror can be safely stored while the HyperStar is installed.
The HyperStar system allows the CELESTRON 9¼" telescope to operate at a focal ratio of f/2.3, thus about 18 times faster than working with the original f/10!!! configuration Fantastic images can be obtained in just a few seconds only!!!!
Technical Specifications:
Focal ratio: f/2.3
Focal length: 540mm
Maximum usable CCD sensor size: 27mm diagonal (APS format)
Field of view (with 27mm sensor): 2.8 degrees
Compatible with DSLR cameras
Camera adapter with 2" (48mm) thread for 2" filters
Backfocus (from threaded ring to focal plane): 59.7mm (2.35")
Length (without camera adapter): 10.7cm
Diameter: 10.4cm
Weight: 810gr.
