SL (Typ 601) firmware v4.1
Leica · First seen by GearPulse Jul 7, 2026
What's in this update
LEICA SL
Firmware update
EN 2
FIRMWARE
Camera-Model Firmware-Version
Leica SL 4.1
EXTENDED FUNCTIONALITY
• Support: LEICA USB-C DC Coupler DC-SCL6
• Lens-Profile: Leica Summicron-M 28 f/2 ASPH.
IMPROVEMENT
• Lens-Firmware
Leica APO-Summicron-SL 75 f/2 ASPH.
Leica APO-Summicron-SL 90 f/2 ASPH
Leica APO-Summicron-SL 35 f/2 ASPH.
Leica APO-Summicron-SL 50 f/2 ASPH.
Leica APO-Summicron-SL 28 f/2 ASPH.
Leica Super-APO-Summicron-SL 21 f/2 ASPH.
Leica Summilux-SL 50 f/1.4 ASPH.
Leica Super-Vario-Elmar-SL 16-35 f/ 3.5-4.5 ASPH.
Leica Vario-Elmarit-SL 24-90 f/ 2.8-4 ASPH.
Leica APO-Vario-Elmarit-SL 90-280 f/ 2.8-4
Leica Summicron-SL 35 f/2 ASPH.
Leica Summicron-SL 50 f/2 ASPH.
Leica Vario-Elmarit-SL 24-70 f/2.8 ASPH.
Leica Vario-Elmar-SL 100-400 f/5-6.3
EN 3
FIRMWARE UPDATES
Leica is continuously working on the further improvement and
optimization of your camera. Since many camera functions are
entirely controlled by software, some of these improvements and
additions to the functional scope can be installed in retrospect.
Leica offers firmware updates at irregular intervals, which you can
download from our website.
Leica will notify you of any new updates, once you have registered
your camera.
Find out which firmware version is currently installed
▸Select Camera InformationCamera Information in the main menu
• The current firmware versions are displayed.
CAMERA FAVORITES
IMAGE SETUP
GPS
Date & Time
Language
Reset Camera
Reset Image Numbering
Camera Information
On
English
More information about registering, firmware updates and how to
download them to your camera, as well as any amendments and
additions to this manual can be found in the customer area of our
website at: club.leica-camera.com
EXECUTING A FIRMWARE UPDATE
Any interruption of a running firmware update may cause
serious and irreparable damage to your equipment!
You will therefore have to take particular note of the following,
when carrying out a firmware update:
• Do not switch off the camera!
• Do not remove the memory card!
• Do not remove the rechargeable battery!
• Do not remove the lens!
Notes
• A warning message will appear if the battery is insufficiently
charged. Recharge the battery and then repeat the process
described above.
• You will find additional device and country-specific registration
marks and numbers in the Camera InformationCamera Information submenu.
EN 4
PREPARATION
▸Fully charge and insert the rechargeable battery
▸The second SD memory card (where applicable) must be
removed from the camera
▸Any stored firmware files on the memory card must be removed
• We recommend saving any recordings on the memory card
and reformatting it before the update.
(Caution: Loss of data! All data stored on the memory card
will be lost during formatting.)
▸Download the latest firmware version
▸Save the download to the memory card
• Store the firmware file in the main directory of the memory
card (not in a sub-directory).
▸Insert the memory card into the camera
▸Switch the camera on
UPDATING THE CAMERA FIRMWARE
▸Preparation
▸Select Camera InformationCamera Information in the main menu
▸Select Camera Firmware VersionCamera Firmware Version
▸Select Start UpdateStart Update
• A prompt with information about the camera is displayed.
▸Check the version information
▸Select YesYes
• The prompt Save profiles on SD Card?Save profiles on SD Card? appears.
▸Select YesYes/NoNo
• The update will start automatically.
• The lower status LED will flash during this process.
• Once the process has completed successfully, a relevant
on-screen message and prompt to restart the device will
appear on screen.
▸Switch the camera off and on again
Note
• Date & time, as well as the preferred language will have to be
set up again after the restart. Relevant prompts will appear on
screen.
EN 5
UPDATING THE LENS FIRMWARE
Where available, you can optionally carry out firmware updates for
lenses. The instructions provided for camera firmware updates
apply.
▸Preparation
▸Select Camera InformationCamera Information in the main menu
▸Select Lens Firmware VersionLens Firmware Version
▸Select Start UpdateStart Update
• A prompt with information about the camera is displayed.
▸Check the version information
▸Select YesYes
• The update will start automatically.
• The lower status LED will flash during this process.
• Once the process has completed successfully, a relevant
on-screen message and prompt to restart the device will
appear on screen.
▸Switch the camera off and on again
UPDATING THE ADAPTER FIRMWARE
Where available, you can optionally carry out firmware updates for
adapters. The instructions provided for camera firmware updates
apply.
▸Preparation
▸Select Camera InformationCamera Information in the main menu
▸Select Lens Firmware VersionLens Firmware Version
▸Select Start UpdateStart Update
• A prompt with information about the camera is displayed.
▸Check the version information
▸Select YesYes
• The update will start automatically.
• The lower status LED will flash during this process.
• Once the process has completed successfully, a relevant
on-screen message and prompt to restart the device will
appear on screen.
▸Switch the camera off and on again
Note
• The relevant menu item will only be visible if an adapter is
mounted and active.
GearPulse never hosts firmware files — always download from the official source.
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