Basic Picture Settings; Turninglens Type Identification On And Off - Leica M Instruction Manual

BASIC pICTURE SETTINgS

TURNINg LENS TYpE IDENTIFICATION ON/OFF
The 6-bit coding in the bayonet fastening of current Leica M lenses
allows the Leica M 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. Thus edge darkening which can be noticeable with wide-angle
lenses and large apertures can be compensated in the
corresponding picture data.
– Flash exposure and reflector control also use the lens data (see
"Compatible flash units", p. 190).
– In addition, the information provided by this 6-bit coding is written
to the EXIF file for the picture. When displaying extended image
data, the lens focal length is also shown (see p. p. 238).
Note:
When using lenses without 6-bit coding, the identification function
must be deactivated to prevent malfunctions, or the lens type used
must be entered manually (see p. 162).
Setting the function
1. In the main menu (see p. 154/246) select
(page 1, section), and
CAMERA
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
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.
The same applies to Leica R lenses, which can be used on the Leica M
with a Leica R adapter M (for further details, refer to the adapter
manual).
3. Select the lens you are using from the list in the Manual
sub-menu.
• The monitor shows a list of lenses, which also includes the
relevant item numbers to ensure clear identification. The
camera detects whether an M lens is attached, or a Leica R
lens using the adapter. The list contains either only M or only R
lenses accordingly.
162
Lens Detection