Sony ALC-SH0007 Lens Hood for Sony 100mm f/2.8 Macro and Sony 75-300 f/4.5-5.6 Telephoto Lens Lens hoods are essential when taking pictures where the camera is pointing towards a strong source of light (i.e. the sun, spot lights). Protects the lens when stood on a surface, in the camera bag, or when changing lenses - also helps to keep fingers away from the front of the lens. Lens hood for Alpha SAL100M28 or SAL75300 lens