Specifications
PowerTracking Tab
Speedlite Control: Adjusts how Canon Speedlites will respond to the AC3 or ControlTL Transmitter with no AC3.
It does not affect the PowerST4. Default = Normal E-TTL
PowerTracking Control: Adjusts how ControlTL-capable remote studio ashes, like ashes connected to PowerST4
radios, respond to the AC3 in Auto Mode, or to a ControlTL Transmitter with no AC3. See the PowerTracking section
for information.
Full Manual (default): Turns off PowerTracking for aperture and ISO.
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.
Nikon: With no AC3 ZoneController on the transmitter, only the camera’s FEC 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.
Center on ISO & Aperture with First Shot: The aperture and ISO as set on the camera for the rst exposure
after powering on the MiniTT1 or FlexTT5 will be used as the center values for PowerTracking. For example if
your camera is set to ISO 100 and F:5.6 for its rst exposure, then those exposure settings will equal 3 stops
down from your ash’s maximum output power. 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 PowerTracking section
for more information.
Center on ISO & Aperture: Lets you control the exposure settings where the center for PowerTracking will
begin. Adjust the drop-down boxes for the Aperture Center-On and and ISO Center-On values you want to use
as the center point (3 stops down from your ash’s maximum) for PowerTracking.
Center on Aperture Only: PowerTracking will only work with aperture changes. Set the desired aperture using
the Aperture Center-On control. ISO changes will be ignored for PowerTracking.