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.
Canon has announced two lenses for the EF-M mount used for the first time by its EOS M mirrorless camera. The first lenses will be a EF-M 22mm F2.0 STM 'pancake' prime and an EF-M 18-55mm F3.5-5.6 IS STM standard zoom lens. Both are built around a STM linear stepping motors to drive focus.