Leica M (Typ 240): Firmware
On this page, I collect information on Leica M (Typ 240) firmware
the numbering of the firmware updates looks somewhat odd for the uninitiated
ones like me...
Regrettably, Leica does not provide a history of firmware updates.
The download page for the Leica M (see below) only lists
the most recent version, even worse, the links include the version number so
that it is not possible to provide a generic link to the update and its documentation.
Whenever Leica publishes a new firmware update, the link will break.
Overview of Firmware Updates
At the moment, the following firmware updates have been
released (this list may not be complete):
Original Firmware (Version 18.104.22.168)
The original firmware for the Leica M (Typ 240) seems to have
had version number 22.214.171.124. But other version may have been published
as well. It was probably published at the end of 2012.
Firmware (Version 126.96.36.199)
This firmware version was used in the DxOMark tests, probably at the end
of 2012. The tests were published in March 2013, when already firmware update
version 188.8.131.52 was available (at least to DxOMark), and DxOMark mentions some
Firmware Update Version 184.108.40.206
Firmware update number
220.127.116.11 for the M (Typ 240) appeared on February 26,
2013. According to Leica, it includes the following improvements (from Imaging
- Vignetting correction has been improved for 11 different
- Tri-Elmar-M 16-18-21mm f/4 ASPH.
- Super-Elmar-M18mm f/3.8 ASPH.
- Summilux-M 21mm f/1.4 ASPH.
- Super-Elmar-M 21mm f/3.4 ASPH.
- Summilux-M 24mm f/1.4 ASPH.
- Elmarit-M 24mm f/2.8 ASPH.
- Elmar-M 24mm f/3.8 ASPH.
- Summicron-M 28mm f/2.0 ASPH.
- Elmarit-M 28mm f/2.8 ASPH.
- Summilux-M 35mm f/1.4 ASPH.
- Summicron-M 35mm f/2.0 ASPH
DxOMark mentions the following on this update: Since testing
the M running firmware version 18.104.22.168 Leica have updated to version 22.214.171.124,
which provides a small improvement for video quality, lens support and stability.
This was a minor firmware update without any functional improvements or bug
fixes, except for the vignetting fixes. Owners of the respective lenses will
probably be grateful fur this update.
Firmware Update Version 126.96.36.199
Firmware update version number 188.8.131.52 for the Leica M (Typ 240) appeared
on October 10, 2013. According to Leica, it includes the following
improvements (from Jono Slack, with his comments):
- Improved performance of the Whitebalance
The accuracy of the Whitebalance presets and the Autowhitebalance function
is higher with Vs. 184.108.40.206.
This results in better skin tones and better general color rendering.
JS: I think that most people will find this a revelation - I think
the colour is now just as lovely as the M9, and much kinder to skin
tones in low light
- Improved Video quality
The visibility of compression artifacts is reduced due to lower video compression.
I can’t comment on this as I’m no expert and haven’t
really used video much either
- Lens calibration
For coded Leica lenses the image homogeneity (color shift) has been improved.
JS: There are general improvements for most wide angle lenses,
and spectacular improvements for some
- General Bugfixes
- Improved stability using live view with and without EVF-2
JS: This is probably the second most important fix - it was very possible
to freeze the camera using EVF - some users much more than others. This
has been almost completely fixed. Freeze ups now seem to be acceptably
- Problem with Display settings in combination with “Sharpness
- Problem with bad exposures after switching the camera on fixed.
- The “Auto Power Off” function showed unexpected behavior,
this is fixed.
JS: This was where the battery would sometimes run down over night
- it seems to be completely fixed
- The recording dates for video files have been wrong sometimes,
this is fixed.
- Problem with Copyright- and Artist-Information in EXIF-Data fixed
- Improvement of general system stability
JS: For stability, read freezing - as mentioned above, this
has been greatly improved, both with ad without live view enabled
- Several minor bugfixes
Jono Slack: This firmware update was designed only for bug fixes
and colour improvements. Another firmware update is planned which will address
enhancements and improvements.
It’s worth noting here that the Auto ISO in Manual Mode issue (mentioned
so much in the forums) is not a bug, as it was intentional, and hence will be
addressed in the planned update (see update version 220.127.116.11 below).
All in all, this was the first major firmware update, which addressed
primarily bug fixes and improvements in color rendition.
Firmware Update Version 18.104.22.168
Firmware update version
number 22.214.171.124 for the Leica M (Typ 240) appeared on
September 15, 2014 (Photokina). According to Leica, it includes the following
improvements (from dpreview.com):
- Improved description of the lens type in Exif-Data
- Live view is now possible with every lens (including older screw lenses
via an adapter) using "manual lens detection"
- A "Video off" option is now available in the Set menu (see submenu
item "Video recording")
- The M-Button on the Top-cover is deactivated when this option is chosen.
- The Horizon (level) is now visible in live view, overlaying the live image.
This additional infoscreen is enabled using the menu item "Horizon"
- New menu item "Exposure Simulation"
- Exposure simulation -> Permanent: Live view mode accurately shows
image brightness according to the shutter speed and aperture set in manual
exposure (as long as the chosen exposure time is shorter than 1/30s)
- Exposure simulation -> Release button half-pressed: Image brightness
in live view is adjusted for best visibility, regardless of the actual
exposure. Half pressing the shutter button shows the actual exposure.
- Extended Auto ISO options
- All Auto ISO options are now visible using the ISO button
- Extra options for "Maximum Exposure Time" - 1x, 2 x, or 4x
focal length - can be selected to help avoid camera shake when using
auto ISO and long lenses.
- "Auto ISO in M mode" is now offered as an option. This varies
ISO sensitivity for correct exposure when shutter speed and aperture are
- Alternatively the camera chooses the previous manually chosen ISO
- Crop marks
- In live view, new crop marks for 3:4 / 6:7 / 1:1 / and 16:9 aspect
ratios can be displayed. By pressing the up/down keys, the crop marks
are superimposed on the live view screen (without additional information)
- Korean language
- Korean is now available as a menu language
- During video recording, 1/25s is now used instead of 1/24s. This reduces
flicker effects with 50Hz mains voltage
- Exposure bracketing settings are now saved when the camera is switched
- Direct exposure correction
- An "EV correction" option in the menu enables direct adjustment.
So EV compensation can be altered by turning the thumb wheel, without
having to press additional buttons.
- New Light Metering Mode "Classic / LV disabled"
- In this mode, only Classic light-metering is possible; the LV button
is disabled to avoid the activation of live view by accident.
- New menu item "Focus Peaking"
- For improved visibility, the color of focus peaking can now be set
to red, green or blue.
- Better display of GPS location data
- Position is now shown for JPG files in Adobe Lightroom®
- Where the GPS signal is weak, the last position is now deleted after
5min instead of 24h as in previous firmware versions.
- Bugfix in live view at high temperatures
- Occasional malfunction of live view at high temperatures has been
- Bugfix in light metering (live view)
- Bugfix regarding sensor cleaning function
This was a major firmware update with tons of improvements. Read Jono Slack's
M Firmware Update v. 126.96.36.199 about this update for more information and better
descriptions of most of the improvements. For me, the following improvements
are especially useful:
- Level view - for me a "must"
- New menu item "Exposure Simulation" for allowing permanent exposure
simulation (except for the case that exposure correction is used)
- Extended Auto ISO options. Among others you have now the Pentax/Ricoh TAv
mode, where you fix shutter speed and exposure like in M mode and adjust
to the lighting automatically by changing ISO.
- Direct exposure correction: You need no longer press the focus button,
if you activate direct exposure compensation. For me a very welcome addition,
because if found it awkward to press the focus button whil turning the wheel.
Firmware Update Version 188.8.131.52
Firmware update version 184.108.40.206 for the Leica M (Typ 240) appeared
on November 6, 2014 and includes the following improvements (from L-camera-forum):
- Support of the new lenses:
- Leica Summarit-M 35mm f/2.4 ASPH.
- Leica Summarit-M 50mm f/2.4
- Leica Summarit-M 75mm f/2.4
- Leica Summarit-M 90mm f/2.4
This was a minor firmware update without any functional improvements or bug
Firmware Update Version 220.127.116.11
Firmware update version number 18.104.22.168 for the Leica M (Typ
240) appeared on July 8, 2015 and,
according to Leica, includes the following improvements:
- New menu item "Flash exposure compensation" added to
adjust flash exposure with the Leica SF 26 flash unit (only active when SF
26 is attached).
This new function requires Firmware 1.1 on the SF 26 Flash.
- Several firmware bugs that caused occasional camera hang up when using
live view or video function have been fixed.
This seems to be a minor firmware update without,
apart from flash exposure compensation for the Leica SF 26 flash unit, any