There are two options for wireless communication built into the 600EX-RT Speedlite system: radio OR optical. If you are using only 600EX-RTs as slaves, then take advantage of the radio system. The range is longer than optical wireless and you won’t have to worry about the signal being blocked by [...]

Canon’s Digital Learning Center recently posted the video of my December presentation Mastering the Speedlite 600EX-RT. I had a great time at the Canon Hollywood Professional Technology Center. Thanks to all the Speedliters who attended.

If you’re looking for tips on how to maximize the potential of your 600EX-RT or wondering whether [...]

According to this list from Canon, the radio-enabled Speedlite 600EX-RT and ST-E3-RT Speedlite Transmitter can be used in 58 countries. The list was published in March, 2012 at the time the new Speedlite system was introduced.

Many additional [...]

For the past week, I’ve had the good fortune to be able to shoot a trio of Canon’s new 600-EX-RT Speedlites (B&H / Amazon) and the new ST-E3-RT Speedlite Transmitter (B&H / Amazon)). The gear was provided to me by Canon-Europe for evaluation. Next week, you will [...]

Controlling Canon Speedlites as Slaves

• Part One: 600EX-RT as Radio Slave
• Part Two: Fundamentals of Optical Wireless (this part)
• Part Three: Setting Up Speedlites as Optical Slaves (coming)
[Note: In this series, I am writing about the [...]