PowerTracking Tab
PowerTracking Control: Adjusts how ControlTL-capable remote studio ashes, like ashes connected to an AC9,
respond to the AC3 in Auto Mode, or to a ControlTL Transmitter with no AC3. See the ControlTL & PowerTracking
section for information.
Full Manual (default): Turns off PowerTracking for aperture and ISO. See the Camera FEC Range and Basic
Power Control section for more information.
Nikon: With no AC3 ZoneController on the transmitter, only the camera’s FEC/EC control will adjust ash
power output level.
Canon: With no AC3 ZoneController on the transmitter, the camera’s ISO and FEC controls will adjust ash
power output level.
With an AC3 ZoneController on the transmitter, any zones set to Auto Mode will operate as Center on ISO &
Aperture with First Shot (see below) when this control is set to Full Manual. AC3 Manual Mode can be used
to adjust ash output power manually with an AC3.
Center on ISO & Aperture with First Shot: Aperture and ISO as set on the camera for the rst exposure will
be aligned with the ControlTL center point (3 stops down from your ash’s maximum output power). For
example, if your camera is set to ISO 100 and F:5.6 for its rst exposure, then those exposure settings will
yield a ash output power of 1/8. Adjustments to aperture, ISO, and FEC will adjust ash output power
accordingly, as will adjusting the Power Dial on AC3 zone in Auto Mode. See the Automatic PowerTracking
section for more information.
Center on ISO & Aperture: Lets you set the aperture and ISO that will be aligned with the ControlTL center
point (3 stops down from your ash’s maximum output power). Adjust the drop-down boxes for the Aperture
Center-On and ISO Center-On values you want to use.
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