16 Elements in 12 Groups (2 Ashperical Lenses), 2ED Lenses Micro Four Thirds Mount Optical Image Stabiliser f=7mm to 14mm (35mm camera equivalent 14mm to 28mm) F4.0  In spite of its impressive wide-angle zoom range of 14-28mm (35mm camera equivalent), this lens is surprisingly compact and lightweight for casual on-the-go use. Taking advantage of its wide, 114-degree angle of view, you can easily fit subjects into the frame even when shooting indoors where thedistance is limited.