The Leica SL3-S is a full-frame mirrorless camera in the SL system with a 24MP sensor optimized for video, supporting 8K internal recording and advanced autofocus. It is a video-focused variant of the SL3 aimed at hybrid photographers and cinematographers.
Product released: January 21, 2025
Latest firmware version
Version 4.2.0, released June 27, 2026
Last checked for updates: Oct 31, 2026 00:00 UTC
What's new in version 4.2.0
NEW
• False Color (Video):
New assistant for color-coded rendering of brightness values directly in
Live View. It allows a precise exposure evaluation, specifically for skin
tone.
• HDMI mirroring including user interface:
The camera monitor can now be mirrored via HDMI, including all on-
screen icons. A new menu option (Mirror via HDMI) allows easy activa-
tion/deactivation of this function.
• Lens Profile:
Support for the new Leica Noctilux-M 1:1.2/35 ASPH.
• Extended AF subject detection (vehicle):
Two options have been added to the menu AF Detection to allow for
vehicle detection. The user can specify the detection of entire vehicles or
specific vehicle parts.
LatestUpdate has tracked 3 versions of Leica SL3-S firmware, released between March 1, 2026 and June 27, 2026.
Version 4.2.0 - June 27, 2026: NEW • False Color (Video): New assistant for color-coded rendering of brightness values directly in Live View. It allows a precise exposure evaluation, specifi…
Version 4.0.1 - March 16, 2026: IMPROVEMENT • When the focus mode was set manually (MF) in video mode, autofocus was not available via the joystick. AF activation via the joystick is now poss…
Version 4.0.0 - March 1, 2026: NEW • A direct Camera-to-Cloud connection to Adobe Frame.io can now be established via WLAN, allowing photos and videos (proxy videos) to be uploaded directly…
The Leica SL3-S is a full-frame mirrorless camera in the SL system with a 24MP sensor optimized for video, supporting 8K internal recording and advanced autofocus. It is a video-focused variant of the SL3 aimed at hybrid photographers and cinematographers. It was originally released on January 21, 2025.
What is the latest firmware version of Leica SL3-S?
The latest firmware version of Leica SL3-S is 4.2.0. It was released on June 27, 2026.
What changed in Leica SL3-S firmware version 4.2.0?
Leica SL3-S firmware version 4.2.0 includes the following changes: NEW
• False Color (Video):
New assistant for color-coded rendering of brightness values directly in
Live View. It allows a precise exposure evaluation, specifically for skin
tone.
• HDMI mirroring including user interface:
The camera monitor can now be mirrored via HDMI, including all on-
screen icons. A new menu option (Mirror via HDMI) allows easy activa-
tion/deactivation of this function.
• Lens Profile:
Support for the new Leica Noctilux-M 1:1.2/35 ASPH.
• Extended AF subject detection (...
Where can I download the latest Leica SL3-S firmware?
Details and download instructions for the latest Leica SL3-S firmware (version 4.2.0) are on Leica's official release page: https://leica-camera.com/en-int/photography/cameras/sl/sl3-s-black/downloads
How often does Leica release firmware updates for Leica SL3-S?
We have tracked 3 firmware versions of Leica SL3-S.
Is Leica SL3-S still receiving firmware updates?
Yes, Leica SL3-S received a firmware update within the last year. The most recent version is 4.2.0.