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Mode selection (TTL or Manual)
Use the mode switch [10] to select TTL or or MAN mode. The mode
switch is only active for the on-camera unit. When the A10 is used off-
camera, the function of the switch is disabled and the on-camera unit
will dictate to all off-camera units if TTL or manual mode is used. When
using the Profoto control or Profoto Camera app the mode switch will
also be disabled.
• TTL mode (AUTO): The camera dictates the light output of the
flashes. The relation between the energy levels for group A-C and
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flash exposure compensation can be set up from the A10.
• MAN mode: The light output for group A, B, C and D can be
controlled manually from the A10.
Note:
By pressing a group twice all groups will be selected and highlighted. All settings done
will now apply to all groups A, B, C, D, E and F.
Flash power scale
The A10 unit has a relative f-stop scale to indicate the flash power
level. Full flash power, 100% is always shown as 10. Decreasing 1-fstop
means reducing the flash power to half, hence energy 9.0 is 50% of
total flash power.
Energy can be adjusted in 0.1 f-stop increments.
Operation in TTL mode (Automatic mode)
Adjustment of flash power relations
In TTL mode the camera dictates the light output of the flashes. If more
than one light is used the relationship between the flash power levels
of group A, B and C can be adjusted. This can, for example, be used to
achieve more light on one side of the object.
1.
Press the A, B or C group button [11] to select the corresponding
group.
2. When a group is selected, do one or more of the following:
• Use the dial [13] to set the relative light output for the selected
group, in relation to the other groups. The relations can be set
to +/- 2 f-stops for each group A, B or C.
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