114
BASIC PICTURE SETTINGS
TURNING LENS TYPE IDENTIFICATION ON/OFF
The 6-bit coding in the bayonet (1.11) of the latest
Leica M lenses enables the Leica M Monochrom
– to detect the type of lens attached using the sensor
in its bayonet (1.10).
– Among other things, this information is used to
optimize the picture data. Thus edge darkening which
can be particularly noticeable with wide-angle lenses
and large apertures can be compensated in the
corresponding picture data.
– The lens data is also used to control flash lighting
and the flash reflector (see “Compatible flash units”,
p. 130).
– In addition, the information provided by this 6-bit
coding is written to the relevant EXIF file for the
picture. With the picture data in the
INFO display (see
p. 141), the lens focal length is also displayed (3.3.7
b, see p. 96).
Note:
When using lenses without 6-bit coding, the identifi-
cation function must be deactivated to prevent mal-
functions, or the lens type used must be entered
manually (see p. 114).
SETTING THE FUNCTION
1. In the main menu (see S. 97/110), select
Lens
Detection
(4.1.1), and
2. the desired option in the sub-menu:
–
Off, or
–
Auto, if a coded lens
is attached, or
–
Manual if a non-coded lens
is attached.
MANUAL LENS TYPE /FOCAL LENGTH ENTRY
Earlier Leica M lenses are not detected by the camera
body due to a lack of identification, but they can be
identified using the menu.
3. Select the lens you are using from the list in the
Manual sub-menu.
• The monitor (1.32) shows a list of lenses, which
also includes the relevant item numbers to ensure
clear identification.
Notes:
• On many lenses, the item number is engraved on the
reverse side of the depth of field scale.
• The list contains lenses that were available without
coding (prior to around June 2006). Lenses
introduced more recently are only available with
coding and therefore cannot be selected manually.
• When using the Leica Tri-Elmar-M 16-18-21mm f/4
ASPH., the set focal length is not transferred to the
camera and thus is not included in the EXIF data for
pictures. If required, you can enter the relevant focal
length manually.
• By contrast, the Leica Tri-Elmar-M 28-35-50mm
f/4 ASPH. features mechanical transfer of the set
focal length to the camera, necessary to display the
appropriate bright line frame in the viewfinder. It is
detected by the camera electronics and used for focal
length specific compensation. However, only one item
number - 11 625 - is listed in the menu for reasons of
space. Of course, the other two versions - 11 890 and
11 894 - can be used and the settings made in the
menu also apply to them.
