A new converter that increases
The expandability of the L-Mount

SIGMA MOUNT CONVERTER MC-31 is a converter that allows PL mount lenses to be used on L-Mount cameras. By using SIGMA MOUNT CONVERTER MC-31, users can use PL mount cine lenses, which are widely used in the filmmaking industry, on the SIGMA fp and other L-Mount cameras. 
MC-31 has shim adjustments on two points of the mount. Adjustments can be made with a shim kit (Supplied) on the camera side of the mount, or a shim for ARRI digital cameras on the lens side, with an aluminum-alloy body and strong brass mount and locking ring, MC-31 boasts excellent durability. It is also designed to be secured on the mount of the SIGMA fp with a screw thread, ensuring an even more secure connection between the lens and the camera. This allows users to shoot steady without the lens rattling even after the long-term use. With the screw thread removed, the stopper of the locking ring is  released. This makes it possible to use MC-31 with a PL mount lens that requires tighter mounting than the MC-31’s specifications, allowing the lens to lock securely in place on the converter. The markings on the upper part of the converter are in the same luminous paint as the one used for SIGMA CINE LENS, helping make it easier to replace or adjust a lens in the dark.

By using MC-31, not only SIGMA CINE LENSES, but also other manufactures PL mount lenses are available to use on SIGMA fp. The MC-31 Contributes to further expansion of the shooting system.