Shutter Speed

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

1/4000 at f5.6 ISO 1600 for dropping a rock in the bucket

The shutter speed settings are shown on the top

on the back monitor. 

Expressed as fractions of a second, the shortest or

highest shutter speed on our cameras are

x seconds and the longest or slowest shutter speed is 2 seconds.

1/30 sec F/22 ISO 100

The third setting ISO controls the camera’s sensitivity to

light. 

This setting goes from 100,120,160,200, ,240,260, on our

cameras.

To center the meter on our cameras 

we can change the aperture , ISO or the shutter speed

4.0 sec F7.1 ISO 100