Step-up rings

Adapter rings

— adapter rings are devices for photo optics that ensure the compatibility of mounts of different diameters with each other.

Nowadays, two types of such devices are produced. The first is adapters for mounting lenses on a “non-native” seat, for example, using Canon optics in a Four Thirds standard camera, or mounting lenses with an M42 thread on a modern bayonet mount. You can select specific options for such accessories using the "Bayonet (mount)" list.

The second type of adapter rings are adapters for installing light filters on lenses that differ in the size of the seat.