Leica M Edition 60, Instruction Manual

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FLASH EXPOSURE CONTROL
Fully automatic flash mode, i.e. controlled by the camera, is available on the
camera with the system-compatible flash units listed in the previous section,
and in aperture priority
A
and manual exposure modes.
In addition, automatic illumination regulation is performed in both exposure
modes. This means that in order to ensure a balanced relationship between
flash and other lighting at all times, the flash power is reduced by up to
1
2
/
3
EV as ambient brightness increases. However, if the ambient brightness
plus even the shortest possible flash sync speed of
1
/
180
s would cause
overexposure, a non-HSS compatible flash unit will not be fired in aperture
priority mode. In such cases the shutter speed is governed by the ambient
brightness and is shown in the viewfinder.
In addition, the camera transfers the set sensitivity to the flash unit.
Provided it has these displays and the aperture set manually on the lens is
also entered on the flash unit, this enables the flash unit to automatically
adjust its range values accordingly. With system compatible flash units, the
sensitivity setting cannot be influenced from the flash unit as it is
transferred from the camera.
Notes:
• Studio flash systems may have a very long burning time. Therefore, when
using them it may be useful to select a slower shutter speed than
1
/
180
s.
• The same applies to radio controlled flash triggers for "unchained flash",
as the radio transmission can cause a delay.
• The following sections describe only those settings and functions that are
available when using this camera with system-compatible flash units.
• More details of flash use, in particular for other flash units not specially
adapted to this camera and for different flash modes can be found in the
relevant instructions.