TS-Optics Optics 2" CCD Reducer 0.67x for RC & flatfield telescopes up to f/8

TS-Optics CCD telecompressor for Ritchey-Chrétien and other F/18 to F/8 telescopes

The TS telecompressor CCD47 was developed for reducing the focal length of RC (Ritchey-Chrétien) telescopes. Practical tests have also shown an excellent suitability for all telescopes with flat field, like apochromats with built-in corrector lens, Celestron EHD or Meade ACF telescopes, thus the most flat-field telescopes. We especially recommend the compressor for the GSO / TS Optics / AstroTec Ritchey-Chrétien telescopes.

The features of the CCD47 telecompressor:

• Barrel size is 2" - easy connection to all focusers with 2" receptacle
• With thread for 2" filters at the telescope side
• Camer aconnection via M48x0.75 thread
• Optimal working distance from the connection thread: 85 mm to the camera sensor. Between 70-90 mm, the results are very good.
• Reduction by 0.67x - an RC with F/8 changes to fast f/5.3. A telescope with f/10 still turns into f/6.7. The exposure time will be more than halved!
• An illuminated image field of 29 mm allows using all camera sensors up to APS-C format.

Adapter recommendations:

With the long working distance, adaptation of all common cameras, no matter whether CCD or DSLR, is possible without any problems. Some examples of applications:

• DSLR camera - adaption via M48: TSVF230 and then the matching adapter from M48 to the camera, like the SKM48-EOS for connecting a Canon EOS
• CCD cameras via T2 connection: two adapters are possible for reducing the M48 thread to T2: