The Sigma SD9 is a digital camera with two individual power systems; one uses lithium batteries and the other two CR-V3 batteries. Its other unique feature is the dust cover filter located on the lens mount. It keeps getting dust from getting into the chamber as well as the sensor when lenses need changing.
It has a 3X optical lens that enables one to get big and bright shots of any subject and in any background. It also comes with built-in memory which can be enhanced using a memory card. The Sigma SD9 can be used for taking still and video images which can be viewed or downloaded onto a computer or television.
