Leica has published a Firmware-Update v. for the LEICA M (Type 240).

It fixes the temperature problem in combination with electronic viewfinder and Live View-mode and provides variety of improvements.

» Leica M Firmware-Update

Again the new Firmware was tested by a group of Leica Forum members, who found some issues that Leica could finally solve. Thanks to all Beta Testers for helping to improve the firmware!

» Firmware Discussion


Leica M (Type 240): Improvements with the new Firmware

The update includes a number of improvements, which significantly enhace the handling and performance of the Leica M (Type 240):

  • 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 info-screen is enabled using the menu item “Horizon”
  • New menu item “Exposure Simulation”
    • Exposure simulation -> Permanent: Live View 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 set manually.
    • Alternatively the camera chooses the previous manually chosen ISO speed
  • 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 off
  • 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 fixed
  • Bugfix in lightmetering (Live view)
  • Bugfix regarding sensor cleaning function


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