The Canon Speedlite 600EX-RT Essential Two Flash Wireless Kit from B&H combines two high-performance Speedlite 600EX-RT flash units with the Canon ST-E3-RT Speedlite Transmitter for refined portraiture and other off-camera flash applications. Utilizing radio-controlled, two-way wireless transmission, the transmitter will communicate with the two Speedlites for customizable control of your lighting set-ups.
The Speedlite 600EX-RT features a wireless multiple flash system using radio wave communication that provides precise control over as many as five groups or fifteen individual flashes at a distance of up to 98.4'. Communicating on 2.4 GHz frequency, it will not be interrupted by physical barriers. It is also very powerful, with a guide number of 197' (60 m) at ISO 100 and a zoom flash head that covers a 20-200mm range. It provides full swivel movement of 180° in both directions. Compatible with the AF frame of all EOS cameras, the Speedlite 600EX-RT even works perfectly with the 61-Point High Density Reticular AF found in the EOS-1D X and the EOS 5D Mark III. It supports all current versions of TTL, including evaluative E-TTL II.
A dot matrix LCD panel and backlit button provide easy visibility and flash functions can be controlled via the camera's menu. A metal hot-shoe and a dust and water-resistant body allow it to be used in adverse conditions, and the included color filter holder and two orange color filters multiply your creative options.
The ST-E3-RT Speedlite Transmitter mounts to your camera's hot shoe and controls up to 15 flash units or 5 flash groups. It can communicate with its flash units up to a distance of 98.4' and from anywhere within a 360º angle. It supports E-TTL II flash, manual flash, stroboscopic and auto external flash metering and offers 8 custom functions and 3 personal functions.
Canon Speedlite 600EX-RT
Complete with built-in radio transmission wireless functionality, the Speedlite 600EX-RT sits at the top of Canon's on-camera E-TTL / E-TTL II compatible flash lineup with a powerful guide number of 197' at ISO 100 and 200mm. This two-way 2.4 GHz radio system provides added reliability and a range up to 98.4' among up to 5 groups with a total of 15 individual Speedlites. This system also does not need direct line-of-site like traditional optical-based transmission and will work through obstacles.
For added coverage and functionality, the flash's zoom head can reach from 20-200mm, with the option for wide 14mm coverage when the built-in diffusion panel is used. Also, the unit can tilt from -7 to +90° and rotate 180° either left or right for complete bounce capabilities. On the back of the 600EX-RT is a backlit dot-matrix LCD panel that displays the status and allows users to easily access and change settings. Additionally, the flash is durable with a redesigned contact construction and improved dust and water resistant sealing.
Other capabilities of the 600EX-RT include a stroboscopic mode as well as high-speed, first and second curtain sync settings for more control over your image's final look. The flash is powered by 4 AA batteries which provide a recycle time of 0.1-5.5 seconds, though it does have a port for an optional external power pack. It comes with a color filter holder with case, a light orange filter, a dark orange filter, a mini stand, and a Speedlite case.
Canon ST-E3-RT Speedlite Transmitter
The Canon ST-E3-RT Speedlite Transmitter can help you take full advantage of all the features on Canon's Speedlite 600EX-RT and 430EX III-RT flashes. The ST-E3-RT makes complex lighting setups simple by facilitating radio-controlled, two-way wireless transmission up to 98.4' away, among up to five groups or fifteen individual Speedlites. It has controls similar to the Speedlite 600EX-RT, including multiple flash metering options, and a variety of flash modes. Compact design with highly reliable construction combined with a clearly laid-out information panel and buttons with back lighting make this an indispensible tool for advanced professional flash photography. The ST-E3-RT represents the next generation in wireless flash systems.
Note: 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.
Green Light--Lit: Radio Transmissions Okay
Red Light--Lit: Not Connected
Blinking: Transmission Error/ Too many units
Orange Light--Lit: Sub-master transmission
Blinking: Receiving remote release shooting, linked shooting signal