Up until this point, there have been two things that impact flash photography and that is this assertion that only the f-number and the ISO matter. The reason that the shutter speed isn’t taken into account is because when a flash goes off, it gives off its light very quickly. No matter how fast your shutter speed is, it will not be faster than that initial burst of light from the flash. And if your shutter is open longer, your flash won’t give off any extra light either. However, there is a shutter speed that you need to use and it is specific to your camera. This is called the x-sync speed. X-sync speed is defined by the shutter itself. When we were
talking about curtains before, we mentioned that there are two curtains. We talked about
talking about curtains before, we mentioned that there are two curtains. We talked about