Canon wireless transfer accessories

Canon has announced three new wireless photo transfer accessories for its higher-end digital SLR models, adding the ability to simultaneously shoot with 10 linked cameras and other connectivity features.

The wireless file transmitter devices, which mount to the SLR camera bodies, are the WFT-E2 II A, available soon for the EOS-1D Mark IV; the WFT-E4 II A, available in the US now for the EOS 5D Mark II; and the WFT-E5A, available now for the EOS 7D. Each transmitter costs US$700 - more than an entire lower-end SLR and lens.

One new feature is called Camera Linking, which lets up to 10 cameras take the same shot, which can be useful for capturing the same moment from different perspectives.

Like their predecessors, the wireless devices have built-in servers that permit photographers, photo editors or others to retrieve photos wirelessly from the camera using a web browser or the venerable FTP file-transfer service.

The devices also permit people with laptops, iPod Touches, netbooks or various other devices to remotely take photos using the camera's live view mode.