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Old May 26, 2004, 6:26 PM   #1
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Is there any other external flashes that will work on the digital Rebel other than the cannon ones? I don't mind if they require to use them manually, would almost perfer that.

Local store said no, do to voltage (not sure what that is??) also would like to mount off camera on a bracket, which I believe would require a hotshoe.

Thanks for any help
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Old May 26, 2004, 8:38 PM   #2
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Most automatic flashes will work with the Digital Rebel, all they need is for the center hot-shoe pin to short to the outer bracket casing to trigger... which is done by the camera @ X-sync shutter speed.

The flash will then detrmine the correct exposure based on the fixed aperture/ISO set on the external flash and controlled through its photoeye sensor. Vivitar, Sunpak and most Metz units have theses features

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Old May 26, 2004, 9:15 PM   #3
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irishman wrote:
... also would like to mount off camera on a bracket, which I believe would require a hotshoe.
FYI with programmable built-in slave (ie wireless, and in case anyone worry about harmful voltages)

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Old May 27, 2004, 4:14 PM   #4
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Sunpak makes a full line of decent hotshoe mounted flashes. I have had several. Never had a problem with voltage. You can get a non-dedicated flash which just has a center pin that makes the flash fire (you control the settings manually on the back of the flash) or you can get a dedicated version (more pins on the connection so the camera can talk to the flash & transmit TTL stuff)

The Hot shoe is the thing on the camera where the flash attaches. What you need is an off-camera shoe cord. Basically an extension cord with a shoe on one end and a foot on the other
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Old May 28, 2004, 8:22 AM   #5
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I'm no flash expert, but what people have said makes sense to me.

To comment on the voltage point, flash systems from different manufacturers seem to use different voltage values while communicating with the flash. It can be very bad for the flash if you miss-match the voltage between the flash & camera. You can fry your flash that way.

So it is an issue that you should worry about, you should be able to find one that works (especially from the comments above.)

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Old Jun 6, 2006, 5:06 PM   #6
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I have a Canon Digital Rebel (350) as well and just purchased an non-oem flash.

I went with the Sunpak PZ40. It is compatible with Canon's eTTL system and can be mounted off-camera with Canon's hot shoe cord.

True its not Canon's 530 flash, but I needed to save some money and get a flash for my needs.

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Old Jul 10, 2006, 5:12 PM   #7
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Replying to eric s

It's the other way around. The voltage refers to the flash trigger voltage. When the circuit is closed to trigger the flash, a voltage goes back to the camera. Old flashes often had very high voltages, a couple of hundred volts. In didn't matter in the old days of mechanical film cameras because they could withstand the voltage, but put one of those old flashes on a digital camera and you will fry the camera. It would be a shame to ruin a $700 camera because of a $30 flash. When buying a non-oem flash for a digital camera, make sure the flash is either dedicated to your particular camera model, or the flash says it is a "digital" flash.

On another topic, when it comes to slave flashes or slave triggers, make sure that they are designed for digital cameras, which fire a pre-flash. A non-digital slave will fire on the first flash it sees (one of your cameras pre-flashes) and not when the main flash is fired. So by the time your camera opens it's shutter, the slave has already fired and the light from the slave does not show up in the picture.
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