Tuesday 6 September 2011

Aperture priority - tips for good photography

As a professional photographer I spend a lot of time, particularly at weddings, shooting in aperture priority so that I can control the depth of field. Depth of field is the range of distance in which people and objects appear sharp and the aperture has a great deal to do with controlling this.


Wide apertures have shallow depths of field so focusing has to be spot on. When it is people in the frame make sure as mentioned in previous advice that the eyes are in focus. Wide apertures allow the foreground and background to be blurred and much of the creative content of a photograph is down to this effect.


Small apertures give greater depth of filed bringing more of the foreground and background into focus. This might be essential where the context is important in a landscape or in an architectural picture. It might also be important in a lifestyle photograph although it is important to avoid a cluttered and distracting background, remembering it is actually a portrait and something must draw the viewers attention to the person.


The widest apertures are 1.4 and 1.8, numbers that are usually followed by a letter 'f'. When buying lenses for your camera always look for as low a number as you can find as this will give you the greatest control over depth of field and allow you to work in lower light conditions without a flash.

Have a go at the aperture setting, it usually is represented as an 'A' on the programme dial and ther camera should then allow you to choose the aperture.

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