Canon, Nikon and Pentax have all developed digital SLR cameras (DSLRs) using the same lens mounts as on their respective film SLR cameras. Konica Minolta did the same, and after having bought Konica Minolta's camera division in 2006 Sony continue using the Minolta AF lens mount in their DSLRs, including cameras built around a semi-transparent fixed mirror. Samsung builds DSLRs based on the Pentax lens mount. Olympus, on the other hand, chose to create a new digital-only Four Thirds System SLR standard, adopted later by Panasonic and Leica.