Depth of field
Field of View primer
Home made ring flash
Special Flash Effects
Tutorials are given a difficulty rating out of five stars(*). Five stars being
the hardest to master.
tutorial -Article and photos by Dan
What it is and how to use it.
Difficulty level - ****
Equipment - Any camera with manual control over aperture.
Definition: Depth of field is the area in front and behind the
main subject that is in focus.
Depth of field is directly related to the
film or digital camera sensor format, focal length and aperture.
smaller the aperture number, the longer the depth of field will be.
For instance, f/2.8 will produce a very shallow depth of field where
f/8 will produce a much longer depth of field.
Try it - examples and usage
Usage is always at the photographers artistic discretion depending on
the look, feel, composition and desired effect for the photograph. Some
photographs will lend naturally to a short or long depth of field.
you are shooting a landscape you would use a high aperture number
such as f/11 or f/22 to produce the most amount of depth of
field thusly having the most area possible in focus.
Shot at f/8 - The bridge and buildings in the distance are in focus.
you are making a product shot, abstract shot or if the photographer wants to
emphasize a specific are of a photo, a shallow depth of
field will be used so shooting around f/2 to f/4 will give the desired
Shot at f/4.2 - Only the lime can is in focus
this example we see the direct effects of aperture on the depth of
The pictureon the left, taken at f/2.8 has only about an inch worth
In the picture on the right, shot at f/8, from the 4th cm to the
9th cm are in clear focus. A much larger DOF than with the smaller
For more information about these factors please
see tutorials on: Aperture -