Part 2: Photography with Imre Z. Balint: Episode 2 – The Shutter
As promised, here is the supplemental post to accompany my video on YouTube . One of the major topics I'd like to address here is the interplay between the aperture and shutter, as the two go very much hand in hand. But first, something that I didn't mention in my video is that shutter speed is measured in seconds or fractions of a second (for "usual" everyday type photography and not specialized work). For example, the majority of cameras (although this may depend on your specific model) will show a number like 60 to represent a shutter speed of 1/60th of a second. For long shutter speeds getting into whole seconds, this is usually shown as 2", which in this example means two seconds. If you watched episode 1 , then you learned that the aperture of a camera controls the amount of light that may pass through a lens by restricting it using an iris diaphragm. As for the shutter, it controls the duration of time that light may strike the sensor (or film). The co...