Canon Community

Camera Canon 40DSpeedlites Canon 420ex & 430ex. how I can use these two speedlites as slave with Canon 40D without Flash a tigger. Do the camera pop-up work as Master flash or is there any other way?

HiIm using Canon 40D, Im facing a problem, that I can't push the ISO upto the last limit H (3200). It stops at 1600, I move the dail, it does not go another stop Further? before this camera, I had another Canon 40D . In that camera I could push ISO t...