Please note that if the firmware version of the WFT-E2/ E2A is Version 1.0.1 or earlier, the WFT-E2 / E2A cannot be used with the EOS-1D Mark IV and a firmware update message will appear on the camera's LCD monitor.
Firmware Version 2.0.0 is for WFT-E2 / E2A units with firmware up to Version 1.0.1.
To use the WFT-E2 / E2A with the EOS-1D Mark IV, you need to update it to Version 2.0.0.
("Canon") under which Canon is providing the software program for updating the firmware of Canon’s digital camera products "WFT-E2 / E2A (the "Software").
BY CLICKING "I Agree" AT THE BOTTOM OF THIS PAGE, YOU ARE DEEMED TO AGREE TO BE BOUND BY THE TERMS AND CONDITIONS OF THIS AGREEMENT.
Do not open the CF card slot cover or press any camera buttons during the firmware writing operation.
Do not remove the WFT-E2/E2A during the firmware update.
If you have any questions, contact a Canon Customer Support Center in your region. IMPORTANT- READ THIS AGREEMENT CAREFULLY BEFORE CLICKING "I Agree" AT THE BOTTOM OF THIS PAGE!
This License Agreement (the "Agreement") is a legal agreement between you and Canon Inc.
If the WFT-E2 / E2A's firmware is already Version 2.0.0, it is not necessary to update the firmware.
For details on the new functions that are available with the EOS-1D Mark IV, please download the PDF instruction manual from the bottom of this page.
IF YOU DO NOT AGREE TO THE TERMS AND CONDITIONS OF THIS AGREEMENT, DO NOT DOWNLOAD THE SOFTWARE.
IN SUCH EVENT, YOU WILL NOT BE ABLE TO USE THE SOFTWARE. GRANT OF LICENSE: Canon grants you a personal and non-exclusive license to install the Software directly or through other medium such as hard disk or Compact Flash and use it on Canon’s digital camera product "WFT-E2 / E2A" which you own.
Even after the firmware update, the WFT-E2 / E2A can still be used with the EOS-1D Mark III and EOS-1Ds Mark III as is. X" appears as the last item when you scroll through the menu with the Quick Control Dial.