EzFoto Bayonet Lens Hood for Sony E-Mount 16mm f/2.8 (SEL-100F28), and 18-55mm f/3.5-5.6 (SEL-1855), replaces ALC-SH112 Replacement for Sony ALC-SH112 Lens Hood, for Sony E-Mount 16mm f/2.8 (SEL-100F28), and 18-55mm f/3.5-5.6 (SEL-1855) The Professional Lens Hood is primarily designed to prevent unwanted stray light from entering the lens. Thanks to its bayonet mount design makes it firmly on the lens, also you can use a filter or lens cap with the hood on. This Lens Hood not only prevents glare and lens flare, but also provides an extra protection to your lens. Pls note it is not for Sony AF Mount DT 18-55mm f/3.5-5.6 Zoom Lens. Sony DT 18-55mm f/3.5-5.6 Zoom Lens needs a bigger hood, the model number is ALCSH108.