Canon has introduced a new variant on their popular 5D professional dSLR model, the Canon 5D Mk. II. The Mark II features an enormous 21.1 megapixel CMOS sensor that allows for live-view previews on the LCD screen. The other marquee feature on the Mark II is the inclusion of a high-definition movie mode, allowing photographers to become videographers and capture full HD clips in 1920 x 1080 resolution. The ability to shoot HD video with interchangeable lenses opens up a whole new world to users.