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
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2" filter thread at the telescope side
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Camera connection via M48x0.75 thread
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Optimal working distance from the connection thread: 85 mm to the camera sensor. Between 70-90 mm, the results are very good.
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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!
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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
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Focal length reduction
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0.67 x |
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Connection to telescope
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2" barrel |
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Filter thread
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2" |
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Coating
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coating |
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Connection to camera
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M48x0.75 external thread |
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Working distance from the camera thread
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70-90 mm , ideal around 85 mm |
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Aperture
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44 mm |
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Fully illuminated field
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29 mm at f/8 |
