Canon Community

I am having trouble preventing over-exposure using an external strobe underwater.   I'm using the Ikelite AF35 strobe, which fires when the camera's flash goes off.  I believe the Canon (in anything other than 100% manual mode) determines how it is g...

The AF35 is an underwater strobe that fires when it senses that the camera's flash has gone off.  At close range (under 3 feet or so), the camera overexposes by about 10 stops!   I want to use an auto setting, but can't get the proper exposure with a...