Canon EF-S 10-18mm f/4.5-5.6 IS STM LensCanon EF S10 18mm f 4. 5 5. 6 IS STM Key Features EF S Mount Lens APS C Format 16 28. 8mm (35mm Equivalent) Aperture Range: f 4. 5 to f 29 One UD Element & One Aspherical Element A must have lens for entry level users, with a range equivalent to 16 29mm zoom (35mm equivalent), the lens is capable of taking great landscape photos, and its exaggerated perspective can also be creatively used to take some highly dramatic pictures that cannot be recreated