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Jim Royal · 04-17-2010, 09:15 AM

My Sigma EF-500 Super Flash is misbehaving when I try to use it in wireless mode with my K20D. I'm not sure if I'm doing something wrong or if the flash needs to be updated.

The external flash won't synchronize with the shutter. The K20D's built-in flash does indeed trigger the EF-500, but the the external flash fires before the camera's shutter even opens. I've tried at various shutter speeds between 1/10th and 1/60th.

Is this a known symptom of outdated firmware, or am I doing something wrong? Many thanks for any help.

flyer · 04-19-2010, 06:29 AM

It likely needs to be re-chipped.

Jim Royal · 04-23-2010, 04:57 AM

Thnaks. I'll check into it.

boolean · 06-14-2010, 02:44 AM

I have the sam eproblem with my K10D. did you manage to rechip it? How did you do this?

omega leader · 06-14-2010, 03:38 PM

Sigma Canada did mine, very quickly and efficiently (though they did chip it for Nikon the first time).

04-17-2010, 09:15 AM	#1
Jim Royal Senior Member Join Date: Oct 2006 Location: Montreal Photos: Gallery Posts: 179	Do I need to have my Sigma flash rechipped? My Sigma EF-500 Super Flash is misbehaving when I try to use it in wireless mode with my K20D. I'm not sure if I'm doing something wrong or if the flash needs to be updated. The external flash won't synchronize with the shutter. The K20D's built-in flash does indeed trigger the EF-500, but the the external flash fires before the camera's shutter even opens. I've tried at various shutter speeds between 1/10th and 1/60th. Is this a known symptom of outdated firmware, or am I doing something wrong? Many thanks for any help.

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04-19-2010, 06:29 AM	#2
flyer Veteran Member Join Date: Jan 2008 Location: Ste-Anne des Plaines, Qc., Canada Posts: 2,013	It likely needs to be re-chipped.

04-23-2010, 04:57 AM	#3
Jim Royal Senior Member Join Date: Oct 2006 Location: Montreal Photos: Gallery Posts: 179 Original Poster	Thnaks. I'll check into it.

06-14-2010, 02:44 AM	#4
boolean Junior Member Join Date: May 2010 Photos: Gallery Posts: 30	I have the sam eproblem with my K10D. did you manage to rechip it? How did you do this?

06-14-2010, 03:38 PM	#5
omega leader Veteran Member Join Date: Jan 2008 Location: Niagara Region, Ontario Canada Photos: Gallery Posts: 417	Sigma Canada did mine, very quickly and efficiently (though they did chip it for Nikon the first time).

Do I need to have my Sigma flash rechipped?

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