Amazon.com : Fotodiox Pro Lens Mount Adapter, Praktica B-System (Also Know as PB) Lens to Nikon DSLRs Camera, PB-Nikon Pro : Electronics
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Vintage PRAKTICA LTL 35mm Film Camera w Pentacon No Lens - Untested | eBay
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Amazon.com : Haoge Manual Lens Mount Adapter for Praktica B PB Mount Lens to Olympus and Panasonic Micro Four Thirds MFT M4/3 M43 Mount Camera : Electronics