Tuning rings from TS Optics are a real problem solution
Metal spacer for exact adjustment of the distance from the corrector to the camera.
The fine tuning ring of the TS M68 system is a true problem solver. Especially with large camera sensors an exact adjustment of the distance corrector - CCD camera is essential to get optimal results over the whole field. This can hardly be achieved with extension rings only.
The M68 spacer is pushed over the M68 male thread and allows a precise distance setting.
TS M68 ZEISS style thread system
This professional thread allows a robust, screwed connection with a large clear aperture at the same time. It is especially recommended for imaging with larger sensors. Our large correctors such as the TS 2.5" corrector for refractors (TSFLAT2.5) or the TS 2.5" Wynne full frame size coma corrector for Newtonians (TSWynneKorr) can be combined well with the M68 system. A good completion is the Baader M68/ZEISS system; the adapters are compatible.
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