Stylishly designed to match Alpha NEX cameras, the Sony E-Mount SEL16F28 16mm f/2.8 Wide-Angle Alpha E-Mount Lens (Silver) is an exceptionally portable and versatile lens that's perfect for both photos and video. This bright lens (16mm focal length, f/2.8 maximum aperture) offers a big, 24mm (35mm equivalent) wide angle and 83 degree field of view for outstanding low-light performance, and smooth, quiet AF (Auto Focus) operation.