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!
Read MoreCapture the Moment!
Here are all my posts on photography, covering techniques, trips, research, exhibitions, talks and workshops. Watch out for my latest article every Saturday.
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Aperture settings for wildlife photography
The aperture is simply the size of the hole in the lens through which light passes on its way to the sensor, and the principle is similar to that of the shutter speed.
The bigger the aperture, the more light reaches the sensor and therefore the brighter the image (all other things being equal). The smaller the aperture, the less light reaches the sensor and therefore the darker the image.
Read MoreDepth 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!
Read MoreRules of composition
As everyone knows, "Those who can, do; those who can't, teach" - but that doesn't stop me trying to do both!
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