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PocketWizard AC9 AlienBees - ControlTL Center Point and FEC Alignment; ControlTL Center Point Definition; Aligning Camera FEC with Flash Range

PocketWizard AC9 AlienBees
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ControlTL
®
Center Point: The center point for all ControlTL operations, including Basic Power Control,
PowerTracking, or when using an AC3 ZoneController, is 3 stops down from your ash’s maximum. For example,
in Basic Power Control, this means 0 on your camera’s FEC equals 1/8 on your ash and FEC +3 equals 1/1 (full
power). This setting may be customized using the PocketWizard Utility under the PowerTracking tab to place the
center point anywhere within the ash’s 5 stop range.
Camera FEC Range and Basic Power Control: You can change the center point to better match your camera’s FEC
range. Adjust the AC9 Flash Exposure Compensation control in the PocketWizard Utility for each FlexTT5 with ACP to
better align your camera’s FEC with the ash’s 5 stop range. See the PocketWizard Utility FlexTT5
®
Receiver settings
section for more information.
This setting must be congured on each receiving FlexTT5 radio. Adjusting it on a transmitting FlexTT5 has no effect
on your remote ash’s power output level.
Camera FEC
Range
Maximum remote
AC9 power
level available using
default settings
Minimum remote
AC9 power
level available using
default settings
Set each
AC9 FEC
so camera
maximum FEC
equals ash
maximum
output power
Set each
AC9 FEC
so camera
minimum FEC
equals ash
minimum
output power
Canon +3 / -3
1/1 at FEC +3 1/32 at FEC -2 through -3 0 0
Canon +2 / -2
1/2 at FEC +2 1/32 at FEC -2 +1 0
Nikon +1 / -3
1/4 at FEC +1 1/32 at FEC -2 through -3 +2 -1