Causes of Warts. Skin warts are caused by a virus known as human papilloma virus (HPV). There are over 100 sub-types of this virus but only a few infect humans to cause warts on the skin. The virus enters the skin cells and replicated like all viruses do but does not extend beyond the skin.
With top speed full resolution shooting at between 4.5 and 6.5 fps (frames per second) these cameras are not going to be ideal sports shooters (that's where full frame DSLRs like the Nikon D4S and Canon 1D X come into their own).
The Nikon D4 DSLR Camera. The flagship Nikon D4 DSLR camera offers speed and accuracy with a 16.2-megapixel FX-format CMOS sensor, 10/11 frames-per-second continuous shooting, a 91,000-pixel RGB sensor and advanced SRS, an improved 51-point AF system, and an ISO range expandable up to 204,800. Plus, capture 1080p HD video with stereo sound.