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This big baby of 1,040 kilogram offers a minimal distance of focus of 1,1m and the luxury of a constant aperture of F/4 on the entire range. Built with 15 elements in 13 groups, the smc 60-250mm has a reproduction ratio of 0,15x maximum and uses ED glass. It measures 167mm long and hopefully, it uses hypersonic autofocus (Pentax SDM system) whcih is an assurance of a fast and silence focusing. Tough, this Pentax Telephoto lens may be used under the rain.
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