Sigma UC Zoom 70-210 F4-5.6 Manual Foucus K-Mount Camera Lens good for Pentax cameras w/back & front lens cover, hoya skylight filter, hood vintage, clean, clear. Sigma UC Zoom 70-210 F4-5.6 MF K-Mount Camera Lens for Pentax, vintage, euc. Sigma UC Zoom 70-210 F4-5.6 Manual Focus K-Mount Camera Lens good for Pentax cameras w/back & front lens cover, hoya skylight filter, hood vintage, clean, clear. View My Other Items For Sale. Add me to your Favorite Sellers. If your item is delayed while in transit, over which I have no control, please kindly understand and do not leave ...