In this tutorial I show you how to connect Canon Speedlite 600EX-RT flashes wirelessly without an additional transmitter.
Using a Sony A7R (or A7) as a USB Webcam via the HDMI Port
Canon 600ex-rt Step-by-Step Setup Guide
Using a Canon Speedlite Flash with a Sony A7R III
Canon Speedlite 600EX-RT Flash Review
How to Setup the Canon 600 EX-RT II Flashes for Wedding Photography (Katelyn James)
Setting up the Canon 600EX-RT Speedlight to trigger with the Canon ST-E3-RT remote
How To Setup Canon 600EX-RT For Wireless Flash
Canon 600ex-rt Step-by-Step Setup Guide
Canon Speedlite 600EX II RT Flash Tutorial
Tim Ford Photography and Videography