Karen old A-level sketch useful tool to see visual how to create a photograph and show step by step guide how I could practise my own skills.
Depth
of Field and Aperture
There are a number
of results of changing the aperture of your shots that you’ll want to keep in
mind as you consider your setting but the most noticeable one will be the depth
of field that your shot will have.
Depth of Field
(DOF) is that amount of your shot that will be in focus. Large depth of
field means that most of your image will be in focus whether it’s close to
your camera or far away (like the picture to the left where both the foreground
and background are largely in focus – taken with an aperture of f/22).
Small (or shallow)
depth of field means that only part of the image will be in focus and the rest
will be fuzzy (like in the flower at the top of this post (click to enlarge).
You’ll see in it that the tip of the yellow stems are in focus but even though
they are only 1cm or so behind them that the petals are out of focus. This is a
very shallow depth of field and was taken with an aperture of f/4.5).
Macro
photographers tend to be big users of large apertures to ensure that the
element of their subject that they are focusing in on totally captures the
attention of the viewer of their images while the rest of the image is
completely thrown out of focus.
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