Studio mode – 
This mode is intended exclusively to trigger other flash units, e.g. studio flash units equipped with a slave function (triggered optically by the camera flash), i.e. it cannot be used for normal flash photography.
Note:
To prevent blurred pictures with the slower shutter speeds in the modes 
, 
and 
, you should hold the camera steady, i.e. support it or use a tripod. Alternatively, you can select a higher
Flash range
The effective range of the flash depends on the aperture and the ISO speed set. For good results, it is crucial that the main subject is within the appropri- ate flash range. See the table below for details.
Sensitivity | maximum flash range1 |
ISO 100 | 2.0 m/6ft |
ISO 200 | 2.8 m/9ft |
ISO 400 | 4.0 m/13ft |
ISO 800 | 5.6m/18ft |
ISO 1600 | 8.0 m/26ft |
ISO 3200 | 11 m/36ft |
ISO 6400 | 16 m/53ft |
ISO 12500 | 22 m/73ft |
1Ranges based on aperture set to 2.8. With other aperture settings, the ranges are correspond- ingly shorter.
Synchronization to the end of the exposure
Flash photographs are illuminated by two light sources, the available light and the light from the flash. Parts of the subject that are exclusively or primarily il- luminated by the flash are almost always reproduced extremely sharply (provided focusing is correct) due to the extremely fast pulse of light. By contrast, all other parts of the subject – those that are sufficiently illuminated by the available light or illuminate themselves – are portrayed with different degrees of sharpness in the same picture.
Whether these parts of the subject are reproduced sharply or „blurred”, and the degree of blurring, is determined by two independent factors.
1.The length of the exposure, i.e. for how long these parts of the subject „act upon” the sensor and
2.How quickly these parts of the subject – or the camera itself – are moving during the exposure.
The longer the shutter speed/exposure time or the faster this movement, the more clearly the two – superimposed – parts of the picture can differ.
With the flash fired at the normal moment, at the beginning of the exposure, i.e. immediately after the shutter is completely open, this can even lead to apparent contradictions, e.g. a vehicle seeming to be “overtaken” by the traces of its own taillights.
The Leica X2 gives you a choice between this normal flash firing moment and synchronization to the end of the exposure, i.e. immediately before the shutter begins to close again. In this case, the sharp image is located at the end of the movement. In the mentioned example, the taillight traces would follow the ve- hicle as one would expect. Thus, this flash technique often gives a more natural impression of movement and dynamics.
In the menu, select Flash Sync (3.14), and in the submenu the desired setting.