Canon EF 24-105mm f/4L IS USM AutoFocus Wide Angle Telephoto Zoom Lens - White Box(Bulk Packaging) Outstanding optical performance, Lens is optimized for use with digital SLRs Full time manual focus available even in AF mode Image Stabilization makes this lens practical, even in low-light conditions Durable construction with weather resistant network of gaskets and seals Circular aperture design - natural highlights, even stopped down two stops