By activating LUMIX S1 with Upgrade Software Key DMW-SFU2, you can enjoy best-in-class 14+ stops V-Log with your LUMIX S1, as well as many other advanced video functions for use in a professional setting.

Please remember I have an original unopened box from Panasonic, this arrived after I sold my S1. Save a massive £80 off the price of the same box from Panasonic. This has now been sold.