Panasonic Lumix DMW-SFU3A Upgrade Software Key for ARRI LogC3

The DMW-SFU3A is Panasonic's upgrade software key that enables ARRI LogC3 recording on supported Lumix cameras. It is a licence rather than hardware: the key unlocks the LogC3 gamma in the camera's own menu, so footage grades against the same LUTs an ARRI body would feed a colourist.

Panasonic lists it for the S1RII, S1II, S1IIE, GH7 and GH6, each of which must be running the latest firmware before the key is applied. On the S1IIE, Panasonic's own specification sheet shows the ARRI LogC3 ISO range as AUTO and 400 to 51200, with 102400 and 204800 as extended values, available only with this key fitted.