The Sigma DG 24-105mm f/4 HSM DG OS Aspherical Lens is a versatile standard lens designed for Canon cameras. This lens from Sigma's Art series offers both auto and manual focus options, along with zoom capabilities. With a maximum aperture of f/4, this lens is ideal for capturing high-quality images with clarity and sharpness. The lens is lightweight, weighing only 887g, making it easy to carry around for shooting on the go. Overall, this lens is a great choice for photographers looking for a reliable and high-quality option.