Shutter Speed Blog Post

The 3 camera settings that comprise the Exposure Triangle are Aperture, 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/22_, f/16_, f/11_, f/8_, f/5.6_, f/4_, f/2.8_

iso 3200 34mm f/18 1/4000 sec

iso 400 25mm f/16 4.0 sec

The shutter speed settings are shown on the top right on the back monitor. 

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

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

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

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