The TSRCKOLLI collimator was developed for Ritchey-Chrétien telescopes, but also for all other types of telescopes, like refractor, Newtonian or SC Cassegrains - made in Europe

• The corrector allows the collimation of almost all optical systems with high accuracy.
• Suitable for all 2" receptacle with precice 2" barrel to avoid tilting
• LEDs are powered by 2 normal 1.5V AA batteries (batteries are not included)
• We recommend the collimator mainly for RC telescopes, Cassegrains and Schmidt Cassegrains as long as they have a center mark on their secondary mirror. So a top collimation state of the telescope can be reached even at daylight.

TS 8" f/12 Cassegrain telescope with fused Quartz mirror and only 33% obstruction - the ideal alternative to a Schmidt-Cassegrain

• Aperture 8" - 203 mm
• Focal length 2436 mm
• F-ratio f/12
• Large illuminated image field with 45 mm diameter
• Hyperbolic secondary mirror and parabolic primary mirror made of Quartz glass for stable focus position
• 99% reflection on primary and secondary mirror for an even brighter image
• Quick temperature adaption due to open design
• Pure reflective system without Schmidt plate or meniscus lens - fully suitable for Infrared
• Only 33 % linear obstruction - very well suited for visual astronomy
• 2" MONORAIL focuser with micro-gear reduction and 1.25" reduction are included
• M90 extension tubes for trouble-free focusing with almost any accessories included
• Internal baffles for higher contrast
• Losmandy style dovetail and Vixen/EQ5 style dovetail for trouble-free adaption to all popular mounts
• Finder-scope shoe is also included
• Very economically priced, compared with other classical Cassegrains

The 2" CCD compressor reduces the focal length of telescopes with the factor 0.67x, thus allowing significantly shorter exposure times.

• ♦ The focal reducer is perfectly suitable for RC telescope. It also works good with Celestron EHD or Meade ACF telescopes or with refractors up to the focal ratio F/9
• ♦ The image field of DSLR cameras up to APS-C format is illuminated - full illumination up to 29 mm
• ♦ Easy connection to the telescope via 2" barrel
• ♦ Optimal working distance from the M48x0.75 thread to the camera sensor is 85 mm - enough space for accessories like off-axis guider or filter wheel
• ♦ 2" filter thread at the telescope side