Speeds faster than 1 second are fractions of a second and most cameras display them without the numerator. For example, 1/2 second is displayed as 2. Speeds of 1 second or slower are whole seconds and many cameras indicate them with quotation or inch marks ("). For example, 2 seconds is displayed as 2".

Standard Shutter Speeds:

1/4 1/8 1/15 1/30 1/60 1/125 1/250 1/500 1/1000

Standard f-stops:

1.4 2.0 2.8 4 5.6 8 11 16 22

Shutter Speed 1/8 1/15 1/30 1/60 1/125 1/250 1/500 1/1000f/stop

f/32 f/22 f/16 f/11 f/8 f/5.6 f/4 f/2.8

Sensor Sensitivity aka ISO or ASA

Depth of Field Example

Rule of Thirds Example