TS Optics CCD telecompressor for Ritchey-Chrétien and other F/18 to F/8 telescopes
The telecompressor was developed for reducing the focal length of RC (Ritchey-Chrétien) telescopes for example by GSO, TS Optics, and AstroTec. 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.
Features - Barrel size is 2", easy connection to all focusers with 2" receptacle
- 2" filter thread at the telescope side
- Camera connection 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 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.
Adaptions With the long working distance, adaptation of all common cameras, no matter whether CCD or DSLR, is possible without any problems. The use of accessories like off-axis guiders and filter wheels is possible, too.
Delivery contents Products specifications
| Focal length reduction | 0.67 x |
| Connection to telescope | 2" barrel |
| Filter thread | 2" |
| Coating | coating |
| Connection to camera | M48x0.75 external thread |
| Working distance from the camera thread | 70-90 mm , ideal around 85 mm |
| Aperture | 44 mm |
| Fully illuminated field | 29 mm at f/8 |
