Hi All,

I have a canon 50d which I use a sigma ef-500 dg super external flash with. It works fine with no issues, the camrea menu work fine with it. The flash works as it should in E-TTL mode.
My freind has just picked up a new Canon 60d and wanted to try my flash but his camara can not work with it. It states its switched off and will not fire the flash for love nor money in any camrea mode. It will not allow you to adjust the flash menus either.
The pop up flash works fine on the 60d, and when the external flash is fittted it does not try and fire the pop up.
Any thoughts? I can not think of any reason why it would not be compatible
Manual states the 60d will work with old speed lights in TTL mode I can not even manage that.
What am I doing wrong???
Thanks

I have a canon 50d which I use a sigma ef-500 dg super external flash with. It works fine with no issues, the camrea menu work fine with it. The flash works as it should in E-TTL mode.
My freind has just picked up a new Canon 60d and wanted to try my flash but his camara can not work with it. It states its switched off and will not fire the flash for love nor money in any camrea mode. It will not allow you to adjust the flash menus either.
The pop up flash works fine on the 60d, and when the external flash is fittted it does not try and fire the pop up.
Any thoughts? I can not think of any reason why it would not be compatible

Manual states the 60d will work with old speed lights in TTL mode I can not even manage that.
What am I doing wrong???
Thanks
