use older manual-focus lenses with an autofocus body, and driving the lens focus mechanism with a motor inside the camera. Later, Nikon added Silent Wave Motor (SWM) mechanisms into its lenses, supporting both focusing schemes until the introductions of the entry-level Nikon D40 and Nikon D40X in 2006. Pentax introduced its Supersonic Drive Motor (SDM) in 2006 with Pentax K10D model and two lenses (DA*16-50/2.8 AL ED [IF] SDM and DA*50-135/2.8 ED [IF] SDM). Since then all Pentax DSLR support both SDM and the motor inside the body. Earlier SDM lenses support both systems as well. The first SDM lens that did not support the old focusing system was the DA 17-70/4 AL [IF] SDM (2008). Consolidation to autofocus and the transition to digital photography The major 35mm camera manufacturers, Canon, Minolta, Nikon, and Pentax were among the few companies to transition successfully to autofocus. Other camera manufacturers also introduced functionally successful autofocus SLRs but these cameras were not as successful. Some manufacturers eventually withdrew from the SLR market. Nikon still markets its manual-focus SLR, the FM10. Olympus continued production of its OM system camera line until 2002. Pentax also continued to produce the manual-focus LX until 2001. Sigma and Fujifilm also managed to continue manufacturing cameras, although Kyocera ended production in 2005 of its (Contax) camera systems. The newly formed Konica Minolta sold its camera business to Sony two years later. Arrival of digital photography In the 2000s, film became supplanted by digital photography, which had a huge impact on all camera manufacturers, including the SLR market. Nikon, for instance, has ceased production of all film SLRs except for its flagship 35 mm SLR film camera, the F6; and the introductory-level Nikon FM10. Replacing film with a similar-sized digital sensor is possible, but expensive because larger sensor areas imply a greater probability that a defect will render the sensor non-functional. Such "full frame" sensor digital SLRs (DSLRs) however gained early popularity with professional photographers who could both justify their initial high cost, and retain the use of their investment in expensive 35 mm film lenses. By 2008, full-frame models such the Canon EOS 1Ds and 5D, the Nikon D3 and D700, and the Sony Alpha A850 and Alpha A900, designed and priced for professionals, were available. As of 2017, several manufacturers have introduced more affordable 35 mm sensor SLRs such as the Canon EOS 6D, the Nikon D610 and