Can a Canon 600EX-RT remotely trigger the shutter on an EOS 70D?
Asked 4/18/2015
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I want to know if a Canon Speedlite 600EX-RT can be used to remotely trigger the shutter on an EOS 70D. Specifically, can the camera’s built-in flash act as the slave while the 600EX-RT acts as the master, or do I need different hardware?
Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0
Photography Stack Exchange contributor
11y ago
2 Answers
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No, you have to have another RT unit on the camera hotshoe to use the remote shutter release capability of Canon's 2012-and-later cameras. The built-in flash cannot work for this, as it has no RF capability--only optical (i.e., it blinks out light signals, but can't blip out/receive radio signals).
It might be easier to just get cheap radio triggers to be your shutter release, or a Yongnuo YN-E3-RT/YN-600EX-RT.
Originally by user27440. Source · Licensed CC BY-SA 4.0
user27440
11y ago
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No. The EOS 70D’s built-in flash cannot be used for this setup. Its built-in wireless function is optical only, while the 600EX-RT’s remote shutter system relies on Canon’s RT radio system.
To remotely trigger the 70D’s shutter via Canon RT, you need another RT-capable unit on the camera hot shoe, such as a compatible RT transmitter or flash. The built-in flash cannot replace that because it has no radio capability.
If your goal is simply remote shutter release, separate radio shutter triggers may be an easier option.
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