Leica SL3 / SL3-S Firmware v4.0.1

The update of firmware v4.0.1 for Leica SL3 and SL3-S It is a small review but relevant to the real use of both cameras. According to the official release notes, it restores the activation of autofocus via joystick when the camera is in video with the focus mode set to MF, and corrects a bulb mode error that could initiate a long exposure that was impossible to cancel under certain conditions.

In a hybrid camera of this level, those two settings matter more than a short changelog suggests. Joystick AF recovery improves the workflow of operators alternating between manual focus and spot assist during recording, while bulb mode correction enhances reliability in long exposure, night photography and extended creative work.

It is a update recommended for users of Leica SL3 and SL3-S that work with video, night landscapes or sessions where the camera must respond consistently without interruptions. It does not add spectacular functions, but it does eliminate two specific frictions in a system designed for serious and continuous use.