'Quick Start' Guide to the new Firmware V4.0 for Leica SL3 and SL3-S with Nick Rains

For Leica Q users, the new firmware adds the same menu layout and control centre as the SL cameras, as well as changing the autofocus menus to match the SL cameras. The Q3 and Q43 operate the same way as the SL cameras, the Q3M does not have PDAF so the tracking function is not available.