stops

In photography there’s something known as the standard f-number series. It’s a geometric sequence of f-numbers that goes like this:

f/1

1.4

2

2.8

4

5.6

8

11

16

22

32

At first this may look like a random series of numbers, but there’s actually a method to this madness, and memorizing this series can help you make quick adjustments to exposure when switching between f-numbers. [Read more…] about Why you should memorize the f-number series