The 8" Ritchey-Chrétien is the perfect telescope for astrophotography, but it is also suitable for visual observation.

• ♦ Aperture 8" / 203 mm - focal length 1624 mm - focal ratio f/8
• ♦ Hyperbolic primary and secondary mirror for very high sharpness on the optical axis and a large well-corrected field for astrophotography
• ♦ Both mirrors made of fused silica for stable focus position
• ♦ 99% high-reflectivy coating on main and secondary mirror for an even brighter image and more contrast - special service from TS
• ♦ Quicker cooling down thanks to open construction and primary mirror ventilation
• ♦ Two Vixen style dovetail bars supplied - ideal for accessories like guiding scopes or a piggyback camera mount
• ♦ High-quality 2" dual speed MONORAIL focuser with 2" / 1.25" reduction adapter - motor focuser optionally available
• ♦ RC correctors for larger sensors from APS-C upwards are optionally available

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

Dovetail Bar - Losmandy Level - for GSO and AstroTech 8" Ritchey Chretien Telescope adaption for the 8" GSO and AstroTec RC and mounts with Losmandy level dovetail bar holder

In the box:

-- Losmandy Level dovetail Bar
-- 2 Spacer for the 8" AstroTech and GSO RC telescope

The adapter allows connecting 2" accessories to adapters, correctors and focusers with male M48x0.75 thread

• Telescope-sided connection: M48x0.75 thread (female)
• Eyepiece-sided connection: 2" receptacle (female)
• Length: 40 mm
• Locking via 2 knurled screws and brass compression ring

High-quality 2" focuser for astrophotography and visual observation with Ritchey-Chrétien telescopes - holds acessories up to 6 kg.

• Oversized ball bearings and V2A stainless steel bearing surface for maximal load with smooth adjustment
• 2" and 1.25" clamping by brass compression ring
• D=65 mm connection thread for threaded adaptions for astrophotography
• Dual speed with gear wheel for motor focus - friction cluth integrated - motor focus is optional
• Trouble-free adaption to TS-Optics, GSO, AstroTec.. RC telescopes via the M90x1 connection thread (female) at the telescope side
• Minimal height with base is 91 mm
• Drawtube travel is 30 mm
• Motorized focusing is possible - see optional accessories

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 extension tube extends an adapter with M48x0.75 thread by 20 mm.

• barrel made of metal
• black anodized
• double sided 2" filter thread (M48x0.75) - male/female
• optical path is 20 mm
• the outer diameter of the adapter is is exactly 2" - fits into the 2" receptacle of focusers or adapters

The extension tube extends an adapter with M48x0.75 thread by 15 mm.

• barrel made of metal
• black anodized
• double sided 2" filter thread (M48x0.75) - male/female
• optical path is 15 mm
• the outer diameter of the adapter is is exactly 2" - fits into the 2" receptacle of focusers or adapters

The extension tube extends an adapter with M48x0.75 thread by 10 mm.

• barrel made of metal
• black anodized
• double sided 2" filter thread (M48x0.75) - male/female
• optical path is 10 mm
• the outer diameter of the adapter is is exactly 2" - fits into the 2" receptacle of focusers or adapters

The extension tube extends an adapter with M48x0.75 thread by 30 mm.

• barrel made of metal
• black anodized
• double sided 2" filter thread (M48x0.75) - male/female
• optical path is 30 mm
• the outer diameter of the adapter is is exactly 2" - fits into the 2" receptacle of focusers or adapters

The extension tube extends an adapter with M48x0.75 thread by 5 mm.

• barrel made of metal
• black anodized
• double sided 2" filter thread (M48x0.75) - male/female
• optical path is 5 mm
• the outer diameter of the adapter is is exactly 2" - fits into the 2" receptacle of focusers or adapters

The extension tube extends an adapter with M48x0.75 thread by 3 mm.

• barrel made of metal
• black anodized
• double sided 2" filter thread (M48x0.75) - male/female
• optical path is 3 mm
• the outer diameter of the adapter is is exactly 2" - fits into the 2" receptacle of focusers or adapters

Versatile dovetail bar for telescope attachment to mounts with Losmandy level saddle plate

• Length: 180 mm
• Very solid in spite of its weight of only 434 grams
• Slotted holes, thread bores and countersunk bores allow a wide range of adaptations