This is a moderate telephoto lens with a field of view corresponding to that of 120mm on a PENTAX 645D or 100mm lens when used on a film 645, in the 24x36mm format. This lens features Inner Focusing and SMC (super multi coating). SMC describes seven microscopically thin layers of high quality coatings that are applied to the lens elements. SMC coatings significantly increase the amount of light transmitted by the lens. Compatible with both film and digital PENTAX 645 cameras.
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