TS-Optics M68 System - M68 Extension Tube - 8mm Length
The TS M68 ZEISS level thread system
Short extension ring with M68 threads on both sides for exact adjustment of the distance
- Optical path: 8 mm (the male M68 thread is not taken into account)
- Length of the male M68 thread: 4 mm
- Clear aperture of the adapter: 63 mm
Like the T2 and M48 threads, the M68x1 ZEISS level thread is well established for high-quality and high-load adaptations where larger free aperture is necessary, i.e. to attach full frame or even larger cameras (i.e. Moravian Instruments G4 cameras) and accessories, like large reducers and flatteners. In all cases where the smaller US standard threads are not sufficient anymore, this thread is willingly used.
The professional correctors from Teleskop-Service, but also from Baader Planetarium and many others, offer a M68 threaded connection.
Teleskop Service has specialized in this thread. They offer, among other things, a very short off-axis guider with M68 thread.
A good completion to the Baader M68/ZEISS system; the adapters are compatible.