Flash Exposure Compensation - Profoto A1 User Manual

Flash exposure compensation

As an alternative to the flash exposure compensation function in the
camera, the A1 can be used to compensate the total flash exposure
when in TTL mode.
Use the dial [13] to adjust the flash exposure compensation ±3.0
f-stops.
Display view in TTL mode
16
Example of Display [9] settings in TTL mode operation
The figure shows an example of the display view in TTL mode when:
•
AIR is activated and channel 1 is selected. The A1 flash unit is set
to belong to group B.
•
TTL mode is selected. The flash exposure compensation is set to
-1.4 f-stops.
•
The energy is set to 4.3. In TTL mode the energy will be set
automatically for each flash.
•
The energy relation between the groups is shown above each
group. In TTL mode the numbers only show the relation between
the groups. The absolute flash exposure is set by the flash
exposure compensation, either in the flash or in the camera.
• The relative light output from lights in group A is set to 2.6
f-stops more than lights in group B and 0.8 f-stops more than
group D.
• Group B is selected to be adjusted.
www.profoto.com