Tamron Adaptall-2 to Contax/Yashica Adapter

The Tamron Adaptall-2 to Contax/Yashica adapter allows Tamron lenses using the Adaptall-2 system to be mounted on cameras with a Contax/Yashica mount. Tamron developed the Adaptall-2 system to allow a single lens to be used with different camera mounts by replacing the rear mount. This C/Y adapter is specifically designed for Contax and Yashica SLR cameras.

The adapter is a fully mechanical solution and provides the necessary aperture coupling between the Adaptall lens and the C/Y camera. On certain versions, the maximum aperture of the lens must first be set on the adapter using a small selector mechanism.

This makes the adapter useful for photographers with classic Tamron Adaptall and Adaptall-2 lenses who want to use them on cameras such as the Contax RTS series or various Yashica C/Y-mount models. It is also a relatively specialised component of the Adaptall-2 system, making it an interesting accessory for collectors of vintage Tamron equipment.