Canon Speedlite ST-E3-RT review
For sophisticated wireless flash setups, there’s nothing like the new
Speedlite Transmitter ST-E3-RT*. Facilitating radio controlled, two-way
wireless transmission up to 98.4 feet, among up to five groups or fifteen
individual Speedlites, the ST-E3-RT represents the next generation in
wireless flash systems. With operational controls similar to the new
Speedlite 600EX-RT, including diverse flash metering options, and a number
of flash modes, the Speedlite Transmitter ST-E3-RT makes complex lighting
setups simple. With a compact design and highly reliable construction,
combined with a clearly laid-out information panel and buttons with back
lighting and more, the Speedlite Transmitter ST-E3-RT is an indispensible
tool for advanced, professional flash photography. *Because it does not
have an optical transmission function, the Speedlite Transmitter ST-E3-RT
is not compatible with earlier Speedlite models such as 580EX II.