Owner`s manual
info@pocketwizard.com
2
Canon 270EX compatibility
This new Canon ash can be used as follows:
270EX: Can be used on the MiniTT1 or FlexTT5 (transmitter or receiver) in ETTL mode.
To use this ash on a ControlTL radio mounted on a camera at HSS shutter speeds, you rst need to enable HSS mode in the
ash. Mount the 270EX directly on a camera (no radio in-between) and enable HSS mode via the camera’s menus. Once that
mode is enabled, the ash will work properly at HSS shutter speeds when mounted on a MiniTT1 or FlexTT5 when used as a
transmitter. HSS operation is automatic (no need to set it) when used on a FlexTT5 as a receiver.
This ash may have occasional exposure issues when used on a MiniTT1 or FlexTT5 mounted directly on certain cameras like the
5D Mark II, 40D, 20D, and possibly others.
ADDITIONAL NOTES:
New “Auto” behavior: Calibration shot no longer triggers local ashes, specically
selected cameras get calibration shots
When the MiniTT1 or FlexTT5 have their camera model set to “Auto” on the Misc Tab in the PocketWizard Utility (default behavior),
the rst exposure taken after the on-camera radio is powered on is a calibration shot – the radio measures the camera’s pre-sync
to X-sync delay. A ash in the top shoe of the camera’s radio will not be red during this rst shot. Previously, ashes were red
during this shot but since the calibration process often yields an unusable image, this was deemed a waste of ash battery power.
The new behavior saves ash battery power by not triggering the ash on top during the calibration shot. Remote ashes on
FlexTT5 radios will still trigger during this calibration shot. You can avoid this by turning on the remote FlexTT5 radios after you
perform your calibration shot.
Additionally, when a camera is specically selected on the Misc Tab in the Utility, the radio still performs a calibration validation
measurement on the rst shot. Even if you select your camera, the rst shot will not trigger a ash in the top shoe of the camera
connected radio. This rst shot is used to validate that your camera responded in an appropriate time frame to make sure new
HSS timings can be used. If it does respond properly, you get the benets of the new HSS timings. If it does not, then the radio
uses Auto mode and default HSS timings.
To get your camera to respond properly, and get the most benet out of “Auto” or a selected camera, take a few shots with it
before connecting your ControlTL radio. These few shots are especially helpful if the camera has just come from a temperature
extreme (hot from a sunny car trunk, or cold from a plane’s cargo hold) or to lubricate the shutter a few times after having been
off for a while.
Always trigger at least twice after you turn on your on-camera radio to verify exposure!
NOTE: For all cameras, the shutter speed needs to be set to 1/4000 or slower for the rst trigger after a ControlTL transmitter is
powered on. Calibration measurements cannot be performed at faster shutter speeds.
New Default: Force TTL Master Mode
“Force TTL Master Mode” is now enabled by default. Previously we emulated Canon’s system such that <MASTER> mode must
be engaged on the ash on-camera for remote ashes to trigger. This is Canon’s method for controlling the remote ashes from
the camera position – toggling <MASTER> on and off toggles the remote ashes on and off. This operation was not intuitive to