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 […]
This is the technically more accurate name for a camera's 'hotshoe'. These days, they're used for more than just attaching a flashgun, and may be used for external microphones, video lights or electronic viewfinders.