Most lenses have letters as part of their names which usually denote what technology they feature and how sophisticated they are. For example, manufacturers which incorporate image stabilisation or low-dispersion elements in their lenses usually state this as part of the lens's name. Other information we can gather from these letters may be the type of mount the lens uses and whether the lens sits in the company's 'professional' range, which can include weatherproofing and more solid construction. A list of the most common suffixes may be found at the end of the listing.

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