Canon ST-E3-RT Instruction Manual

Pages 220

Year 2014

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Canon ST-E3-RT Specification

The Canon ST-E3-RT is a sophisticated wireless flash transmitter designed for professional photographers seeking reliable and advanced flash control. Compatible with Canon's RT-enabled Speedlite system, it offers wireless radio transmission, providing a significant range of up to 30 meters. This transmitter operates on the 2.4 GHz frequency, ensuring a stable connection even in environments with obstructions or crowded wireless activity. It supports E-TTL II/E-TTL autoflash and manual flash settings, offering flexibility in controlling lighting conditions with precision. The ST-E3-RT is capable of controlling up to five groups of flashes, enabling photographers to creatively light complex scenes with ease.

The device is equipped with a backlit LCD screen that facilitates easy navigation through settings and adjustments in various lighting conditions. The user interface is intuitive, providing quick access to essential functions for seamless operation during shoots. The Canon ST-E3-RT also features a high-speed sync function, allowing for flash synchronization at shutter speeds up to 1/8000th of a second, ideal for capturing fast-moving subjects or achieving dramatic lighting effects in bright conditions.

Weather-sealed against dust and moisture, the ST-E3-RT is built to withstand challenging shooting environments. Its compact and lightweight design ensures that it can be easily integrated into a photographer's kit without adding unnecessary bulk. Powered by two AA batteries, the transmitter provides long-lasting performance, suitable for extended sessions. Overall, the Canon ST-E3-RT offers robust functionality, reliability, and convenience, making it an indispensable tool for professional photographers seeking advanced wireless flash control.

Canon ST-E3-RT F.A.Q.

How do I set up the Canon ST-E3-RT for the first time?

To set up your Canon ST-E3-RT, insert the batteries, attach it to your camera's hot shoe, turn on the device, and set the desired communication channel. Ensure that the flash units are on the same channel to enable wireless communication.

What should I do if the Canon ST-E3-RT is not communicating with my flash units?

Ensure that both the transmitter and flash units are set to the same channel and group. Check for any signal interference and ensure that the batteries are adequately charged. Try resetting the device to factory settings if the issue persists.

How can I update the firmware on my Canon ST-E3-RT?

Download the latest firmware from the Canon website onto your computer. Follow the provided instructions to connect the ST-E3-RT via USB and run the update utility. Ensure the device has full battery charge before starting the process.

What is the maximum range of the Canon ST-E3-RT?

The Canon ST-E3-RT has a maximum range of approximately 30 meters (98.4 feet) in optimal conditions without obstructions. Range can vary depending on environmental factors.

How can I perform a factory reset on the Canon ST-E3-RT?

To reset the Canon ST-E3-RT to factory settings, go into the menu, select 'Clear Settings', and confirm your selection. This will reset all custom settings back to default.

Can the Canon ST-E3-RT trigger third-party flashes?

The Canon ST-E3-RT is primarily designed to work with Canon's RT-compatible flashes. However, some third-party flashes that support Canon's RT system might work. Compatibility is not guaranteed, so testing is recommended.

How do I change the communication channel on the Canon ST-E3-RT?

Press the 'CH' button on the Canon ST-E3-RT and use the dial to select the desired channel. Ensure all devices in the system are set to the same channel to enable communication.

What type of batteries does the Canon ST-E3-RT use, and how long do they last?

The Canon ST-E3-RT uses two AA batteries. Battery life depends on usage and brand but typically lasts for around 10 hours of continuous use. Always carry spare batteries for extended shooting sessions.

How do I configure group settings on the Canon ST-E3-RT?

Press the 'GR' button to enter group mode. Use the dial to select the group you wish to configure and set the flash mode and power for each group. This allows customized lighting setups for different shooting scenarios.

What should I do if the Canon ST-E3-RT displays a communication error?

First, check that all devices are on the same channel and group. Ensure that there are no obstructions between the transmitter and receiver. If the problem persists, try resetting the device or updating the firmware.