Shutter Speed

The 3 camera settings that comprise the Exposure Triangle are Aperature, Shutter speed and ISO

On the back monitor of our Canon DSLR cameras, the aperture setting is displayed with “F” followed by a number.  

Apertures (from smallest openings to largest openings) are typically numbers f/1.4, f/2.8, f/4, f/5.6, f/8, f/11, f/22

The shutter speed settings are shown on the top right (left or right?) on the back monitor. 

Expressed as fractions of a second, the shortest or highest shutter speed on our cameras are 1/4000x1/8000 seconds and the longest or slowest shutter speed is 1/30 seconds.

Examples of Shutter speeds (not in order) are 1/8, 1/2, 1, 1/30, 1/60, 1/125, 1/250, 1/500, 1/1000, 1/2000, 1/4000

The third setting ISO controls the camera’s sensitivity to light. 

This setting goes from 100,200,400,800, 1600,3200,6400, on our cameras.

To center the meter on our cameras, we can either  change the  aperture, shutter speed    or the iso

Shutterspeed: 1/4000 ISO:1600 Apeture:f/5.6

Shutter speed:1/30 ISO:100 Apeture:f/22

Shutter speed:2" ISO:200 Apeture:f/22

Shutter speed:1/4000 ISO:400 Apeture:f/22