TS Optics

TS Premium 80 mm f/7 ED apo refractor telescope with improved image quality due to ED objective and 2" rack & pinion focuser for astrophotography and observation

• TSED80F7: Special offer for a limited time. The telescopes are new and have full warranty.
• Premium 80 mm f/7.0 ED 2-element objective with improved chromatic correction and good light sensitivity - glas from Ohara (Japan)
• Focal length 560 mm - focal ratio f/7
• Outstanding mechanical construction with CNC tube, CNC tube rings and temperature compensated, adjustable lens mounting
• 2" dual-speed rack & pinion focuser - one of the best focusers of the TS product range for high loads
• 2" and 1.25" connection, and M54x0.75 inner thread are available for adaptations
• Very good image field correctors and also reducers for astrophotography are optionally available
• Dovetail GP/EQ5 style is included
• Finder shoe for finder scopes and small guidescopes is included

Ritchey Chretien astrograph with 250 mm aperture with corrector and fast focal ratio of f/6.4 for astrophotography with sensors up to full frame format

• Aperture 250 mm / focal length 1625.5 mm / focal ratio f/6.4
• High quality 3" rack and pinion focuser with internal corrector and 360° rotation - everything is screwed together
• Primary mirror and secondary mirror made of quartz glass for stable focus position
• 94% enhanced reflectivity on primary mirror and secondary mirror for a bright image and short exposure times
• Carbon truss tube with high quality workmanship for optimal stiffness and focus stability
• Working distances 55 mm from M48x0.75 thread (adapter included) and 73.7 mm from M68x1 thread for individual adaptations
• Two Losmandy style dovetail bars for adapting to mounts and attaching optional accessories such as guiding scope
• The focuser can be tilted independently from the primary mirror (tilting)
• Ventilation of the primary mirror accelerates cooling down
• Extensive accessories like 2" connection for observation, extension rings between focuser and telescope, finder shoe on the tube ...
• Each RC is checked and optimized by TS/APM before shipping. It is provided with a checklist.

With this adapter you can connect your (D)SLR directly to instruments with the SC thread (also called 2" thread), using an optional T2 ring.

• designed for Schmidt Cassegrain telescopes
• telescope side 2" SC thread
• camera side T2 (M42x0.75) external thread
• camera connection via T2 ring (optional)
• optical length 20 mm

Adapt 1.25" filters to your T2 accessories, with just 10 mm optical path.

• Telescope side connection thread: female T2-thread (M42x0.75)
• Camera side connection thread: male T2-thread (M42x0.75)
• Optical path: 9 mm without lock ring or 10 mm with lock ring
• Inner thread: female thread M28.5x0.6 for mounting 1.25" filters
• Application example with TS IR cut photo filter No. 2

The short adapter enables the connection of adapters with M42x0.75 female thread to focusers and adapters with M68x1 internal thread.

• Thread telescope side: M68x1 external thread - length 3.7 mm
• Thread camera side: M42x0.75 T2 external thread - length 5 mm
• Additional female 2" filter thread on the telescope side, for connection of 2" mounted filters
• No effective optical length because the M68x1 external thread is completely countersunk in the focuser - a shorter adaptation is not possible

Self-centering T2 rotation and quick coupling for astrophotography

• Thread on the telescope side: T2 (M42x0.75) Internal thread
• Thread on the camera side: T2 (M42x0.75) External thread
• Only 5.5 mm short (without external thread) - ideal for short adaptations
• The adapter is self-centering, you remain on the optical axis.
• Practical clamping with knurled screws, also works with gloves
• Sturdy construction, we recommend the adapter for accessories up to approx. 1.5 kg