Pentax 150-300mm f4.5 ED IF SMC FA 645 Mount Lens
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The 150-300mm f4.5 ED IF SMC FA Lens from Pentax is a telephoto zoom compatible with both film and digital Pentax 645 cameras. It boasts special extra-low dispersion (ED) glass for lifelike and natural colour renditions and for correction of chromatic aberrations. The Inner Focusing mechanism keeps weight and size to a minimum, and delivers fast, quiet auto focus operation.