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Flash operating modes<br />
The LEICA <strong>SF</strong> <strong>58</strong> has a total of six flash modes:<br />
TTL TTL flash mode<br />
TTL -HSS TTL flash mode with HSS-High Speed Synchronisation<br />
A Automatic flash mode<br />
M Manual flash mode<br />
M -HSS Manual flash mode with HSS-High Speed Synchronization<br />
M -Slave Off-the-camera operation as secondary flash with wireless release<br />
Strobe flash mode<br />
Depending on the features of the camera, not all of these modes are available:<br />
LEICA R 8 / R 9<br />
LEICA M 8 / M 8.2<br />
LEICA M 7<br />
LEICA MP<br />
LEICA M 6 TTL<br />
TTL<br />
x<br />
x 3<br />
x<br />
– 4<br />
x<br />
TTL -HSS<br />
x 2<br />
–<br />
–<br />
–<br />
–<br />
A<br />
x<br />
x<br />
x<br />
x<br />
x<br />
M -HSS<br />
1 Function is intended only for off-the-camera operation as secondary flash. With<br />
this function, the flash unit can only be triggered by another flash unit through its<br />
slave-sensor.<br />
2 Only with LEICA R 9<br />
3 With metering pre-flash (see “TTL flash mode with metering pre-flash”, p. 56)<br />
4 The function is inicated on the monitor of the flash unit, but is not supported by<br />
cameras which only have one hot-shoe contact. It can therefore cause defective<br />
exposures with these cameras.<br />
M<br />
x<br />
x<br />
x<br />
x<br />
x<br />
x 2<br />
–<br />
–<br />
–<br />
–<br />
M<br />
-Slave 1<br />
x<br />
x<br />
x<br />
x<br />
x<br />
56<br />
TTL flash mode<br />
With TTL flash mode, you can achieve very good flash shots easily. In this<br />
mode, the exposure is measured by a sensor in the camera. It measures the<br />
light entering the camera through the lens (TTL = “Through The Lens“).<br />
The advantage of this flash mode is that all factors influencing the exposure<br />
(filters, aperture changes, and focal length changes with zoom lenses, extensions<br />
for close-ups, etc.) are automatically taken into account in controlling the<br />
flash output.<br />
TTL flash mode with metering pre-flash<br />
The TTL flash mode with metering pre-flash with the digital <strong>Leica</strong> M- models is<br />
a further development of the standard TTL flash mode of analog cameras.<br />
Immediately after the shutter button is pressed, and before the actual exposure,<br />
one or more almost invisible metering pre-flashes are executed by the<br />
flash unit. The reflected light of the metering pre-flash/es is evaluated by the<br />
camera. According to the evaluation, the subsequent flash exposure is adapted<br />
to the photographic situation by the camera.<br />
Notes:<br />
• Depending on the camera model, the metering pre-flashes precede the main<br />
flash by such a short interval that they cannot be practically distinguished<br />
from the main flash!<br />
• The metering pre-flashes do not contribute to the exposure.