Prime lenses are fixed focal length lenses. These are lenses which do not zoom. Prime lenses tend to be sharper corner to corner because the inability to zoom allows lens manufacturers to concentrate on the optical quality of the lens. Prime lenses also tend to have fast wide apertures. There is a conflict of opinion on whether prime lenses are better than zoom lenses or vice versa. Those who prefer prime lenses tend to argue that these are faster, lighter and less complicated. Prime lenses are the choice of photographers who do a lot of walking instead of zooming from a place. One of the most popular prime lenses are the 50mm lenses which come in f/1.8, f/1.4 and f/1.2 versions.« Back to Glossary Index
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