How to Wirelessly Trigger Your Flash with your Canon 7D
// January 5th, 2011 // 9 Comments » // Instructables, Photo
Well, I told Troy I’d show him how to get his 7D to activate his flash without any extra special equipment, but then thought it would make a good blog post. So here is an instructable: How to wirelessly trigger your flash with your Canon 7D.
You see, the 7D is a very cool camera because it comes with the ability to trigger Canon speedlite flashes remotely. Most cameras require an external attachment to send a radio signal to the flashes, but not the 7D. So long as you are within sight of your flash, the 7D will send an infra red signal to the flash telling it to fire.
Okay, first things first. Let’s tell the Canon7D to send that signal.

1: Press the Menu Button

2: Scroll to “Built In Flash func.” followed by “Flash Control” and hit “Set”

3: Scroll Down to Wireless Function and hit “Set”

4: Select the middle option (external flash alone) and press “Set”

5: Go to your flash and HOLD the Zoom button until the screen shows this

6: Cycle through until you have the camera on “Slave” then press “Set”

7: With your camera powered on, press this button to pop up the flash
The camera and flash default to ETTL mode, which is essentially “Auto Flash.” It detects the ambient light around, and adjusts the flash’s power to fire accordingly. This is by far the easiest way to use your flash and a good place to start. But, if you want more control over it, it’s time to move over to manual mode. With the wireless function in the 7D, you can make all the adjustments from the camera itself which is a huge time saver.

Back in the Menu -> Flash settings, select the first option
Well there ya have it. If you have more than one ETTL enabled flash, you can control up to three groups (I believe) from the camera itself. There are limitations to this system (such as if you place the flash around a corner or wall into a different room) but in general it’s very handy. Play around with the menu settings and you’ll see how separate flashes can be grouped to different channels to be controlled separately from each other. Good luck, and send me a link to see your new off-camera flash shots!





















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