Canon Flash Accessories | ST-E3-RT SPEEDLITE Transmitter Version 2

This updated version allows for wireless rear curtain synchronization to capture ambient light trails and convey a sense of speed for moving subjects. The expansive minimum output range (down to 1/8192 power) gives you increased opportunity for creativity over the flash output from brightest to dimmest. And you now have FE Memory as part of the radio transmitter, so you can lock-in an E-TTL flash exposure level, even in complex multi-flash set-ups, and continue to use it for the same scene or subject. These improvements combine with the previous benefits of its predecessor including radio controlled, two-way wireless transmission up to 98.4 ft., among up to five groups or fifteen individual Speedlites, a dot matrix LCD with backlighting, intuitive controls and more. 

•  Updated to include Wireless Rear Curtain Synchronization, A Minimum Output Range of 1/8192, and FE Memory*.
• •  Up to 5 groups, or 15 Individual Flashes can be Controlled via 1 Transmitter.
• •  Supports E-TTL II Flash, Manual Flash, Stroboscopic and Auto External Flash Metering.
• •  Dot Matrix LCD Panel Displays all Pertinent Information Simultaneously and Backlit Control Panel means Easy Operation.
• •  8 Types of Custom Functions, 3 Types of Personal Functions.
• •  High-Performance Hot Shoe Contacts for Reliable Information Transmission and Operation.

Type: Radio transmissions wireless Speedlite transmitter

Compatible Cameras: Type A EOS cameras (E-TTL II/E-TTL autoflash)

Sync Speed: High-Speed Sync provided

Flash Exposure Confirmation: Flash exposure confirmation lamp lights in green * If it does not light, shooting is not performed with the standard exposure
 

AF Assist Beam N/A

Wireless Functions

Transmission System: Radio Transmission

Transmission Range: Approx. 98.4 ft. (30m)

Flash Ratio Control: 1:8 – 1:1 – 8:1, power 1/2-stop increments

Flash Coverage: Transmission Angle: 360° all around

Receiver Operation Confirmation: Green Light Lit: Radio Transmissions Okay, Red Light Lit: Not Connected
Blinking: Transmission Error/ Too many units (Sender units + receiver units = more than 15 units)
Orange Light Lit: Sub-sender transmission, Blinking: Receiving remote release shooting, linked shooting signal
 

Receiver Unit SE Mode Cancellation:The test flash button can be pressed to test if the receiver units fire or cancel the auto power-off status.

General

Power Source: AA/LRG Alkaline Batteries x2(Ni-MH and Lithium batteries can also be used)
Battery Life:  Approx. 10 hours continuously *When using AA/LR6 alkaline batteries used (At a room temperature +23°C/73°F).
 

SE Mode: Power off after 5 min. of idle operation

Dimensions: 2.65 (W) x 2.42 (H) x 3.05 (D) in. / 67.4 (W) x 61.5 (H) x 77.4 (D) mm

Weight: 3.9 oz. / 110g (excluding battery)

Speedlite Transmitter ST-E3-RT (Ver. 2)
• Soft Case