Lumix is Panasonic's brand of digital cameras, ranging from pocket point-and-shoot models to digital SLRs. Compact digital cameras DMC-LC5 and DMC-F7 were the first products of the Lumix series, released in 2001. They are equipped with Leica lenses. Indeed, many Lumix models are fitted with Leica lenses, designed by Leica's German optical engineers, and are assembled in Japan. Others are rebranded as Leica cameras with different cosmetic stylings. Leica had a similar relationship with Minolta in the past, where late model Leica SLRs (and some 35 mm point-and-shoot models) were strongly based on Minolta bodies. Most Lumix cameras use differing releases of the Panasonic Venus Engine for digital image processing; the original version (2002) was followed by II (2004), Plus (2005), III (2006), IV (2008), HD, V (2009), and VI, HD II, FHD (2010). Panasonic produces most of Leica's branded digital point and shoot cameras in Japan, but not film cameras, the Leica M8 or Leica M9 digital rangefinder cameras, the X1 and X2 digital cameras or the Digital Modul R digital camera back for the Leica R9 film SLR. Panasonic showed a prototype of a planned 3D Lumix camera in September 2011, saying that it would have twin 4x zoom lenses with folding optics and optical image stabilization for both video and still images.