Sometimes the ambient light level is too low for successful for photography, or it’s the ‘wrong’ kind of light. This is where photographers turn to flash (or ‘strobe’, if you’re in the US). Flash works by emitting a very short, very powerful burst of light. Energy is stored in a capacitor in the flash head […]
Master flash
A flashgun that can be used to fire other flashguns automatically in a multi-flash lighting setup. The 'master' flash is typically where you set all the controls and is generally more powerful or more sophisticated than the others (or just closer to the camera!).