F-Stops Explained in Under 2 Minutes – PictureCorrect: "Are you perplexed by the tiny numbers marked on your camera lens? Do you wonder what they are or what they do? They’re called f-stops and they refer to the opening of the lens, known as the aperture, which allows light to enter the camera. Each number indicates a measurement of the size of the opening. In this quick video, Taran from Techquickie explains everything you need to know about aperture as quickly as possible:"
'via Blog this'