PowerTracking
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You can use any PocketWizard receiving radios together in the same exposure, including other ControlTL radios.
Remember that studio and manual flash output will not be calculated as part of an E-TTL / i-TTL exposure.
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 flash’s maximum. For example, in
Basic Power Control this means 0 on your camera’s FEC equals 1/8 on your flash and FEC +3 equals 1/1 (full
power). This setting may be customized using the PocketWizard Utility under the PowerTracking tab.
Camera FEC Range and Basic Power Control: You can change the center point to better match your camera’s
FEC range by adjusting the Flash Exposure Compensation control in the PocketWizard Utility for each PowerMC2
or PowerST4. This setting must be configured on each receiving radio.
This setting must be configured on each receiving radio. Adjusting it on a transmitting FlexTT5 has no effect on
your remote flash’s power output level.
Camera
FEC Range
Maximum remote power
level available using default
settings
Minimum remote power
level available using default
settings
Set each FEC so camera maximum
FEC equals flash maximum output
power
Set each FEC so camera minimum
FEC equals flash 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
Automatic PowerTracking
When Automatic PowerTracking is engaged, any changes to aperture and ISO on your camera are automatically
tracked by your remote flash output power to maintain the current exposure level. For example, if you open the
aperture on your camera by one stop, then the power output level on your remote flash will decrease by one stop.
To engage Automatic PowerTracking when you are not using an AC3 ZoneController, set the PowerTracking mode
to a setting other than Full Manual. This is done in the PocketWizard Utility for your transmitting ControlTL radio
only. PowerTracking has several modes of operation available. See the PocketWizard Utility section on adjusting
this setting via the PowerTracking Tab for more information.
The following directions are for the PowerTracking mode Center on ISO & Aperture with First Shot.
In this mode, the aperture and ISO as set on the camera for the first exposure will be aligned with the ControlTL
center point (3 stops down from your flash’s maximum output power). For example if your camera is set to ISO 100
and F:5.6 for its first exposure, then those exposure settings will yield a flash output power of 1/8. See the ControlTL
Center Point section for more information.
To set the aperture and ISO values that will be aligned with the ControlTL center point:
• Turn on your camera and transmitting MiniTT1 or FlexTT5, but wait to press your shutter button or take any
pictures.
• Set the aperture and ISO you wish to align with the center point. Set the shutter speed as desired, however
changes to shutter speed will not affect PowerTracking.
• Press the shutter button to take a picture. The center point is now aligned with your aperture and ISO settings.
• Use your camera’s FEC control to get the exposure the way you want it. If you are unable to achieve the exposure
you want using this control, try adjusting the Flash Exposure Compensation control in the PocketWizard Utility
for each PowerMC2, use a different aperture or ISO, or consider an AC3 ZoneController.
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