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General| Channels | 4 |
|---|---|
| Compatible Cameras | Canon EOS Cameras with E-TTL and E-TTL II |
| Transmission Range | Approx. 12-15 meters indoors, 8-10 meters outdoors |
| Groups | A, B |
| Flash Ratio Control | Yes |
| Power Source | One 2CR5 lithium battery |
| Weight | 100 g (without battery) |
| Type | Wireless flash transmitter |
Identification of the front-facing parts of the ST-E2 transmitter.
Identification of the rear-facing parts of the ST-E2 transmitter.
Explanation of the ST-E2 main switch positions: OFF, ON, and HOLD.
Instructions for inserting the 2CR5 lithium battery into the ST-E2.
Steps to securely attach the ST-E2 to a camera's hot shoe.
How to turn on the ST-E2 and check indicators for successful transmission.
How to set the channel number on the ST-E2 for wireless communication.
Setting the 550EX to SLAVE mode and turning it on.
Setting the channel number on the 550EX to match the ST-E2.
Guidelines for positioning the ST-E2 and slave units for optimal wireless transmission.
Setting the camera for normal flash operation with the ST-E2.
Verifying the ST-E2's pilot lamp and slave readiness for transmission.
Performing a test transmission to confirm wireless flash functionality.
Procedure for taking a picture and confirming flash exposure with wireless operation.
Details on the ST-E2's AF-assist beam functionality and range.
Operating multi-flash with all slaves firing at the same output.
Using slave IDs and flash ratios for differentiated lighting in multi-flash setups.
Assigning slave IDs (A, B) for controlling flash ratios in multi-flash.
Explanation of how slaves with the same ID are controlled as a group.
Adjusting the flash ratio between slave A and slave B for main and fill flash.
Positioning the camera and slaves to achieve desired lighting effects.
Using high-speed sync (FP flash) wirelessly with the ST-E2 and Speedlite.
Utilizing the FE lock function wirelessly with the ST-E2 and Speedlite.
How to set flash exposure compensation using the camera.
Firing wireless manual flash by setting the slave to single-slave or manual mode.
Using wireless repeating flash with the slave set to single-slave or repeating mode.
Common problems, their probable causes, and solutions for the ST-E2.
Detailed technical data for the Speedlite Transmitter ST-E2.
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