Canon Speedlite Transmitter ST-E2 Overview

When attached to the camera's accessory shoe, this transmitter allows wireless control of Speedlite 580EX II and/or 430EX slave units. The brightness and lighting ratio of multiple units can be controlled through E-TTL II autoflash metering, and an AF auxiliary flash function for area autofocus is provided.

Key Features

• Type: 580EXII, 580EX, 550EX, 430EX or 420EX-dedicated, clip-on Speedlite transmitter with direct contacts.
• Compatible Cameras: Type A EOS cameras (E- TTL, autoflash); Type B EOS cameras (Manual flash) .
• Channels: 4
• Flash Ratio Control: For A:B ratio: 1:8 to 8:1, in half- step increments or 13 steps .
• High- Speed Sync (FP flash): Enabled with high-speed sync mode .
• Slave Operation Confirmation: With test transmission button. *Slave A fires followed by slave B at 1/64 output.
• 1. Before flash fires during FE lock Adequate flash exposure indicated by the flash exposure level icon lit in the viewfinder. Insufficient flash exposure indicated by the flash exposure level icon blinking in the viewfinder.
• After flash fires ST-E2's flash confirmation lamp lights in green for 3 sec.
• Wireless slave SE mode cancellation: Cancels when the test transmission button or FE lock botton is pressed to turn on the slave unit.
• Wireless Transmission: Infrared pulse.
• Transmission Range: Indoors: Approx. 12-15 meters/39.4 - 49.2 ft; Outdoors: Approx. 8-10/ 26.2-32.8 ft.
• Transmission Coverage: 140Degrees horizontal and 130Degrees vertical.
• Battery Life: Approx. 1,500 transmissions (At room temperature and with a new set of batteries)
• AF-assist Beam: Compatible with EOS-3's 45-point Area AF and 28mm and longer lens focal lengths
• AF-assist Beam Effective Range: Approx. 0,6 to 10 m/2.0 to 16.5 ft along the periphery (in total darkness).
• SE Feature: While the power switch is set to I or HOLD, the transmission turns off automatically after about 90 sec. of non-use.
• Power Source: 2CR5 lithium (6V) battery x 1 .

Notes:
- Multiple flash control and lighting ratio control are supported by EOS-1v, EOS-3, EOS 30V/33V/30/ ELAN 7 NE/ELAN 7N/ELAN7, EOS 300X/REBEL T2, EOS 300V/REBEL Ti, EOS 3000V/REBEL K2, EOS-1D series, EOS 5D, EOS 30D, EOS 20D/20Da, EOS 10D, EOS D60/D30, EOS 400D DIGITAL/DIGITAL REBEL XTi, EOS 350D DIGITAL/DIGITAL REBEL XT and EOS 300D DIGITAL/DIGITAL REBEL.
- The lighting ratio between slave units can be manually controlled with other EOS models not listed above.

420EX can not be used as the master slave, to trigger other flashes.

• Power Source: 2CR5 lithium (6V) battery x 1 .

• Dimensions: 62 (W) x 51 (H) x 80 (D) mm/2,4 (W) x 3,1 (D) in .

• Weight: 100 g/ 3.5 oz (exluding battery)