Shutter Speed Post

(ISO 1600 ~ f 5.6 ~ 1/1000 sec)

The 3 camera settings that comprise the Exposure Triangle are ISO, aperture, and shutter speed.

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

Apertures are typically numbers f/32, f/22, f/16, f/11, f/8, f/5.6, f/4, f/2.8, f/2, f/1.4 (from smallest to largest)

(ISO 200 ~ f/11 ~ 1/50 sec)

(ISO 100 ~ f/3.5 ~ 1/30 sec)

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

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

Examples of Shutter speeds (not in order) are ,

1”, ⅛”. ½, 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 on our cameras.

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

Finally for the 3rd picture, we learned how to securely fasten a camera to a tripod to take a picture showing a ghost-like image.

(ISO 200 ~ f/11 ~ 6.0 sec)