Owner`s manual
July 10, 2009
info@pocketwizard.com
MiniTT1 Firmware Upgrade to version 4.300 
FlexTT5 Firmware Upgrade to version 4.300 
All MiniTT1 and FlexTT5 owners are encouraged to upgrade and try this new rmware. Check www.PocketWizard.com regularly 
for future updates.
This new version of the ControlTL rmware introduces many improvements, especially to 5D Mark II operation, as well as  
corrections and improvements for other camera models. While greatly improved, operation with the 5D Mark II is still not 100%. 
Notably, operation with wide aperture lenses like the f:2.5 or wider series have some limitations regarding the narrowest aperture 
that can be used especially when there is a ash used on camera. See below for more details on this specic case.
IMPORTANT: 
  •  This rmware version requires PocketWizard Utility version 1.18 or later to be installed. If you are still running version 1.15, 
    click here to get the latest version. Find the version number in the title bar of the Utility.
  •  Upgrade all of your MiniTT1 or FlexTT5 radios to the latest rmware. Mixing old and new revisions may result in undesirable 
    behavior.
  •  Always perform a factory reset after updating your rmware. Be sure to write down any custom settings for Conguration 
    1 or Conguration 2 before you reset your radios so you can re-apply them after the upgrade. See RESET B on page 28 in 
    the Owner’s Manual or simply hold TEST as you power on for 10 seconds until you see 4 blinks (green). 
New Features
Camera model “Auto” setting now detects 5D Mark II 
The 5D Mark II now gets the benet of automatic detection when the MiniTT1 or FlexTT5 are used on top of the camera.  
Previously this camera model had to be selected in the PocketWizard Utility on the Misc Tab for proper timings to be used. Now, 
due to the unique signature this camera presents to the ControlTL system, the default setting of Auto can be used. Photogra-
phers that previously had to craft C.1 or C.2 settings precisely for the 5D Mark II now have more exibility.
Additionally, the uniqueness of the 5D Mark II detection allows for the ControlTL radios to automatically use the higher efciency 
High Speed Sync (HSS) ash timings. As announced in rmware version 4.250, these new timings allow for faster recycling, 
more ashes from your batteries, more light output, and greater working distances than possible when using Canon’s E-TTL 
system alone. These special timings are available for all compatible Canon EOS DSLRs, but only the 5D Mark II gets the benet 
of these timings automatically. To get the benet of these higher HSS efciencies with all other cameras, you must select your 
camera model on the Misc Tab in the PocketWizard Utility.  
See the Additional Notes: New “Auto” behavior below for more information on “Auto.”
MiniTT1
™
/FlexTT5
™
 for Canon
340.00 - 354.00 MHz, US FCC/Canada IC
Owner’s Manual: Addendum v4.300










