Canon EF 75-300mm f/4-5.6 III Telephoto Zoom Lens (Black) (Certified Refurbished)The Canon EF 75 300mm F4 5. 6 III Telephoto Zoom Lens in Black is a high magnification zoom lens and is the smallest and lightest in its class, offering ideal cost performance. A lightweight glass material was used for the first element group. The heaviest group in the optical system to reduce operational load during autofocus operation. Combined with the micro USM, the autofocus is quick and quiet. The slim exterior and smooth zooming make this lens