Alongside the Canon EOS 1D Mark IV, Canon has also announced a series of updates to their Wireless File Transfer systems, notably the new WFT-E2 II A which features added support for 802.11a wireless (along side 802.11b & g) and a revised HTTP mode called WFT Server which enables new remote camera triggering capabilities.
WFT Server brings new a remote viewing capability that taps into the camera's Live View feed and allows you to remotely adjust shutter speed, aperture, ISO and other settings as well as remote shutter release functions all from the web browser of a linked computer, iPhone or similar smartphone. Canon has released screenshots of the WFT Server mode running on a wirelessly connected iPhone.
There is some backwards compatibility between the new Wireless File Transmitters and the 1D Mark III and 1Ds Mark III. The original WFT-E2A will function on the 1D Mark IV without access to the new features like WFT Server. Alternately, the newer WFT-E2 II A will be compatible with the 1D Mark III and 1Ds Mark III once a firmware update has been released.
This brings the combinations of usable pro Wireless File Transmitters to include all of the following:
- 1D Mark IV w/ WFT-E2A or WFT-E2 II A
- 7D w/ WFT-E5A
- 5D Mark II w/ WFT-E4A or WFT-E4 II A
- 1D Mark III w/ WFT-E2A or WFT-E2 II A
- 1Ds Mark III w/ WFT-E2A or WFT-E2 II A