Canon wireless e-TTL flash triggers / radio transmitters - Tangents
Canon EL-1 Flash Review by Ken Rockwell
Neewer 16 Channels Wireless Radio Flash Speedlite Studio Trigger Set with Standard Hot Shoe, Including Transmitter and Receiver, Fit for Canon Nikon Pentax Olympus Panasonic DSLR Cameras (CT-16): Flashes: Amazon.com.au
Godox CT-16 16 Channels Wireless Radio Flash Trigger for Canon Nikon Pentax DSLR Camera Studio Flash (Transmitter + Receiver) : Amazon.ca: Electronics