Which would give you a shallower depth of field: a 400mm lens at f/2.8 or a 600mm lens at f/4? It’s actually the 600mm lens at f/4. Surprised? Well, let’s hope you didn’t go out and buy the 400mm rather than the 600mm lens for better bokeh!
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Depth of field
To blur or not to blur. That is the question.
In this article, I’ll tell you how to control depth of field (or DOF) and try to show you when you don’t want it, when you do want it and what to do when it all goes horribly wrong!
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