topic Canon 580 EX not turning off in Speedlite Flashes

Canon 580 EX not turning off

cinemobius — Fri, 06 Nov 2015 18:17:26 GMT

I've got a 580 EX and it just got weird... There is about a 60-90 second delay between the time the off switch is flipped and the unit shuts down. Also, when trying to power it up, nothing happens until I press the pilot button, then the unit comes to life... any thoughts? Have a wedding tomorrow (of course) and this is a big problem 😞

-sean

Re: Canon 580 EX not turning off

Tara_N — Fri, 06 Nov 2015 18:39:00 GMT

Hello cinemobius!

Welcome to the Canon Forums! The Forums aren't intended for immediate assistance. If your question is of an urgent nature, please feel free to CONTACT US either by phone during business hours or email 24 hours a day!

Re: Canon 580 EX not turning off

Tim — Sun, 08 Nov 2015 23:39:00 GMT

Hello Cinemobius,

From what you describe this does sound like a strange issue. You may try to use a different set of batteries. If you are using a battery pack, please disconnect this and use AA batteries instead. If you are using the flash off camera I would recommend using it attached to your camera instead.