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

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.

The adapter extends a male T2 thread to M48x0.75 (2") filter thread without increasing the length.

• Female thread: T2 - M42x0.75
• Male thread: 2" filter thread - M48x0.75
• Length: only 2.5 mm - the mechanical length is optically not effective, as the adapter is completely sunken in the connection adapter

Collimating your refractor telescope is quick and easy when you use this 1.25" Cheshire collimating eyepiece. You see in seconds the collimating situation of the telescope, you also can use the Cheshire on newtonian telescopes.

This low profile adaptor enables the connection of T2 accessories to adaptors with M48x0,75 male thread.

• Thread towards telescope: M48x0,75 - 2" filter thread (female thread)
• Thread towards camera: T2 - M42x0,75 male thread
• Optical length only 3,5 mm
• Combining the optical extension tube TSVF230 with the TSM48-T2 adaptor provides a Focal Adaptor from 2" to T2 - with no optical length!

TS T2 M42x0.75 extension tube - 10 mm length - with T2 threads at both ends.

♦ Optical length: 10 mm

♦ Male thread length: 4 mm

♦ Female thread length: 9 mm

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

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 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 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 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 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

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