Lens Type Detection - Leica M Operating Instructions Manual

PICTURE DEFAULT SETTINGS
EN

LENS TYPE DETECTION

The 6-bit coding in the bayonet fastening of current Leica M lenses
allows the camera to identify the type of lens fitted using the
sensor in the bayonet socket.
– Among other things, this information is used to optimize the
picture data. For example, edge darkening which can be
noticeable with wide-angle lenses and large apertures can be
compensated in the corresponding picture data.
– Flash mode control also uses the lens data (see "Compatible
flash units", p. 154).
– In addition, the information is written to the EXIF data for the
picture. When displaying extended image data, the lens focal
length is also shown.
Setting the function
1. In the main menu (see p. 128/197), select
and
2. select the desired option in the sub-menu:
– , or
Off
– , if a coded lens is attached, or
Automatic
– , if a non-coded lens is attached.
Manual
Note:
When using lenses without 6-bit coding, the lens type identification
function must be deactivated to prevent malfunctions, or the lens
type used must be entered manually.
136
Manual lens type / focal length entry
The camera is unable to recognize previous Leica M lenses as they
have no identification. However, this "identification" can be carried
out in the menu.
3. Select the lens you are using from the list in the
sub-menu.
• The monitor shows a list of lenses, which also includes the
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
Lens Detection
relevant focal length manually.
• By contrast, the Leica Tri-Elmar-M 1:4/28-35-50mm 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.
relevant item numbers to ensure clear identification.
Manual