This Tamron AF Aspherical LD (IF) lens is a great addition to your photography equipment. With a maximum aperture of f/3.5, it allows for great low-light shots. It is compatible with Canon EF mount and has a focal length range of 28-300mm, making it versatile for various shots. The lens has both auto and manual focus options, giving you control over your shots. The exterior material is made of plastic, and the lens is manufactured in Japan. It is compatible with a 72mm lens front and has a compatible filter size of 72mm. This unit is sold as a single item and belongs to the Tamron AF series.