Leica 18430 Manuel D’Utilisation

148

Automatic flash activation with slower shutter speeds -  
For simultaneous appropriate, i.e. brighter, reproduction of dark 

backgrounds and fill-in flash for the foreground. To minimize the risk 

of blurring, the shutter speed is not extended beyond 

1

/

30

s in the 

other modes with flash activation. For pictures where the flash is 

used, this means that objects in the background, which the flash 

cannot reach, are often badly under exposed.

To take adequate account of the available ambient light, the longer 

exposure times required in such situations (up to 30s) are allowed 

here.

• Depending on the 

Auto ISO Settings

 it is possible that the camera 

may not support slower shutter speeds, as in such cases the in–

crease in ISO sensitivity takes precedence.

• The maximum shutter speed can be specified using 

Slowest 

Speed

.

speeds -  
For a combination of the situations and functions described above.

Studio mode - 
This mode is intended exclusively for wireless firing of additional flash 

units, e.g. studio flash units equipped with a slave function. They are 

fired optically by the camera flash. The function cannot be used for 

normal flash photography.

To prevent blurred pictures with the slower shutter speeds in 

, 

, and 

 modes, you should hold the camera steady, i.e. 

rest it on something or use a tripod. Alternatively, you can select a 

higher sensitivity.

FLASH RANGE
The available flash range depends on the aperture and sensitivity 

values set manually or calculated by the camera. For sufficient 

illumination by the flash light, it is crucial for the main subject to be 

within the range of the flash. For details, refer to the technical data  

on p. 190.