Canon and Nikon dominate the professional digital SLR market with their wide range of professional quality lenses, cameras and accessories. Canon provides a complete selection of lenses from super wide angle to telephoto zooms for their range of full frame digital slr cameras & their digital SLRs with APS-C size sensors. Full frame lenses can be used on digital SLRs with APS-C size sensor but the focal lenght of the lens must be multiplied by 1.5 so that a 100mm lens becomes a 150mm lens.
Canon L lenses are held in high regard by professionals & are well known for their high quality, fast autofocus & tough weather sealed bodies. Choosing a Canon lens or a lens from an independent lens maker can be a difficult & time consuming process but we will recommend some lenses for beginners, intermediate & advanced
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