Needed to connect your 35mm Leica SLR camera body to a T-adapter or camera adapter for prime focus photography (full disc solar/lunar photography and terrestrial photography); to a tele-extender or camera adapter for eyepiece projection photography (planetary photography and close-up shots of the Moon); and to an off-axis guider for long exposure deep space photography.

Leica does not recommend the use of any T-ring other than this genuine Leica part with their cameras. They cannot guarantee the compatibility of non-Leica parts with their cameras and will not cover under warranty any damage caused to a Leica camera by a non-Leica T-ring.