Common skin warts (also called cutaneous warts) are raised round or oval growths. A wart may be lighter or darker than the skin around it. Some warts may have tiny black dots in them, often called seeds. The dots are small, clotted blood vessels. Warts may occur alone or in larger groups that merge and form patches.
According to Canon (link):  Canon addressed the âfeedback loopâ in later model IS lenses by introducing an algorithm to the IS detection system to automatically recognise when the lens is mounted to a tripod.
A DSLR would be best for portraits, entry level models would be the Nikon D40 or Canon EOS-1000D...or perhaps the Pentax line. 85mm fixed lens is a good choice. You can get a compact like the Canon SX1 that has a decent zoom. Just depends on whether you are looking for pro results or casual snapshots/portraits. Some of my best ever candid portaits were with an Olympus C2100UZ, a 2MP 10X zoom camera.