A set of two 12mm and 24mm adapter rings for Canon cameras with an R-mount transferring full information between the body and the lens. Thanks to the rings you can place the camera closer to the subject and get the effect of zoom.

DG adapter rings MK-S-AF3-A for micro DSLR is an accessory designed for micro DSLR lenses useful when shooting at short distances, at greater magnification.

MeiKe adapter rings in the econo version (with a plastic bayonet)  are an accessory designed for micro DSLR lenses useful when shooting at short distances, at higher magnification.