Description - Canon
ST-E2 Transmitter
A master control device
for wireless Speedlite flash system. Meets professional and advanced amateur
standards. Its dedicated transmitter controls up to 3 Canon 550EX Speedlites
as slave units 33ft. away outdoors and 49.5ft. away indoors. It is mounted as
a clip-on with shoe lock lever and locking pin.
Specifications:
Type: 550EX-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.
Flash Exposure Confirmation:
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.
2. 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 u nit.
Wireless Transmission: Infrared pulse
Transmission Range: Indoors: Approx. 12-15 meters/39.4 - 49.2 ft; Outdoors:
Appro x. 8-10/ 26.2-32.8 ft
Transmission Coverage: ±40° horizontal and ±30° 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
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)
Features
Advanced Features: E-TTL Compatible Since it is compatible with E-TTL auto
flash functions, groups of 550EX Speedlites are able to take advantage of
High-Speed Sync, FE Lock, Flash Exposure Bracketing, and Pre-flash evaluative
metering.
Built-in AF-Assist Beam: The AF-Assist Beam automatically fires in low-light
and low-contrast situations to assist the camera's auto focusing system.
Sets and Controls Flash Ratios: Transmitter ST-E2 sets and controls all
functions of its Speedlite 550EX slave units. Flash ratios,for example,are
controllable between 2 Speedlite 550EX groups.
High Speed FP Flash: High Speed FP (Focal Plane) flash for synchronization at
all shutter speeds is available, even the EOS-3s top speed of 1/8000. Larger
apertures can be used to obtain better background blur. And fill flash can be
used for moving subjects in daylight. Weight:3.5 oz./100 g (Including
battery).
For more information about, Canon Speedlite Transmitter ST-E2 STE2 .
Customer Reviews on Canon Speedlite Transmitter ST-E2 STE2
Review by kypros kyprianou, 28/05/2011, Customer Rating:

excellent transaction and so quick . plus good service .
thanks