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500mm
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![smc PENTAX-DA 10-17mm F3.5-4.5 ED [IF] Fish-Eye - Ricoh](https://us.ricoh-imaging.com/wp-content/uploads/2019/01/Product_Lens_template_0000s_0016_DA-10-17mm-500x500.png "smc PENTAX-DA 10-17mm F3.5-4.5 ED [IF] Fish-Eye - Ricoh")
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SMC Pentax 500mm F/4.5 Telephoto MF Lens for K Mount from Japan (C1758) | Big Fish J-Camera (Big Fish J-Shop)
