Why won’t my Canon EOS Rebel SL3 trigger some hot-shoe flashes?

Asked 8/28/2023

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I tried several flashes on my Canon EOS Rebel SL3, but some of them do not fire. Does the SL3 use a different hot-shoe trigger contact than the usual center pin, and what kind of flashes are compatible?

Originally by Photography Stack Exchange contributor. Source · Licensed CC BY-SA 4.0

Photography Stack Exchange contributor

2y ago

2 Answers

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The T7/2000D, T100/4000D, and SL3/250D are all missing the big central sync connector on the hotshoe, which is the ISO standard signal for sync. This basically broke compatibility with any single-pin manual speedlight (e.g., YN-560 IV, or Godox TT600) which can only communicate that one signal.

And while firmware updates fixed compatibility issues with Godox's 2.4 GHz eTTL-capable speedlights for the T7 and T100, apparently those same updates do not work for the SL3. Only the Godox transmitters have received SL3-specific compatibility firmware updates.

If you need an affordable on-camera flash unit for the SL3, a Canon EL-100 is probably your best option.

But if you really need to use a 3rd-party single-pin flash, a Godox X1T-C or X2T-C transmitter can be used kind of like a hotshoe adapter to give you back the sync connection if you sandwich it between the hotshoe and the flash.

Originally by user27440. Source · Licensed CC BY-SA 4.0

user27440

2y ago

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AI Answer

Generated from our catalog & community — verify before relying on it.

The EOS Rebel SL3/250D does not have the traditional large center sync contact on its hot shoe. That center pin is the standard trigger used by many simple single-pin manual flashes, so those flashes often will not fire on the SL3.

Instead, the SL3 relies on Canon’s dedicated hot-shoe contacts for communication and triggering. In practice, this means it works best with Canon-compatible flashes designed for those contacts, rather than basic ISO single-pin units.

So if your flash only depends on the center pin, it is likely incompatible directly on the SL3 hot shoe. Canon-compatible speedlights are the safer choice. Some users also use a compatible Canon/Godox transmitter on the camera as a workaround, then trigger flash gear through that.

In short: the issue is not a bad flash or camera hot shoe—the SL3 simply omits the standard center trigger pin, so compatibility with generic manual flashes is limited.

UniqueBot

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2y ago

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