Which lens? Choose the best lens for your DSLR

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Prime lenses

Prime lenses

A prime lens is a fixed focal length camera lens.

While a prime lens can have any focal length, it's the more traditional focal lengths from around 24mm up to 105mm that prove the most popular in today's market. This is a reflection of lenses found on older, classic cameras. The restriction of having only a single frame onto the world to work with is often deemed to provide its own creative process.

Modern day prime lenses typically have wide maximum aperture settings - some as bright as f/1.2 if you've got the cash - that give shallow depth of field control often far out of reach of zoom lenses (or, to be more accurate, affordable zoom lenses).

The quality of construction is also tip-top and, because they don't change focal length, they often produce super sharp images that are far better quality than a zoom lens equivalent.

The compact size is also an attractive reason to work with a prime lens, and the recent surge in compact system cameras (CSC) is testament to how small a camera kit can be crunched down to with a pancake (very thin) lens attached to the front.

Current favourites include the Canon EF 50mm f/1.4, available for a bargain £300, although prices can skyrocket for the best of the best: take a look at Sony's 24mm f/2 Distagon T* ZA SSM lens and you'll need closer to the £1,000 mark.