A single focus lens including: a first lens group having a negative refractive power; a second lens group having a positive refractive power, the second lens group being arranged to move in a direction that is transverse to an optical axis of the single focus lens; a third lens group having a negative refractive power that is arranged to perform a focusing function; and a rear lens group disposed between the third lens group and an image side of the single focus lens, wherein the first lens group, the second lens group, the third lens group, and the rear lens group are ordered sequentially from an object side of the single focus lens to the image side of the single focus lens.