Technical data

111
Settings for TTL flash mode
After turning on the flash unit and setting it to
"TTL” mode, proceed as follows on the LEICA M7:
01. Before each flash exposure, first of all turn on
the exposure meter by lightly pressing the
shutter release button, i.e. the display must
have switched to shutter speed values or the
light balance. If the shutter release button is
pressed too quickly and completely and the
exposure meter remains turned off, the flash
unit may not be triggered.
02. Set the shutter speed dial to "AUTO", the flash
synchronising speed "" (1/50s) or, for spe-
cial effects, a slower shutter speed (or "B"). In
aperture priority mode, the camera automati-
cally switches to the flash synchronising
speed 1/50s.
03. Set the desired aperture or that required for
the appropriate distance between camera and
subject.
Flash exposure displays in the viewfinder with
the SF20/SF24D or compatible flash units
with SCA 3502/3501 adapter
In the LEICA M7 viewfinder, an LED in the shape
of a flash (A) is used for acknowledgement and to
indicate the different modes. This LED appears
together with the displays described in the corres-
ponding sections for exposure metering using the
available light.
Displays in TTL and automatic flash mode
•  is not displayed even though the flash unit is
turned on and ready to use:
A shutter speed faster than 1/50s is manually
set on the camera, but the flash unit is not
set to the "High speed synchronised flash”
function. In such cases, the LEICA M7 does not
trigger the flash unit even if it is turned on and
ready to use.
Note: High speed synchronised flash is only pos-
sible in the flash unit’s manual mode, not for com-
puter or TTL mode.
•  flashes slowly (at 2 Hz) before the shutter is
released:
The flash unit is not operational yet.
•  lights up continuously before the exposure:
The flash unit is operational. 