Sony ALCSH108 Lens Hood for Sony SAL1855 Zoom Lens - Black Helps block unwanted light - 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 - 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 Compatible - Lens hood for Alpha SAL-1855 and SAL-1870 lens Dimensions (Approx) - 3 x 2 21/32 Inches Weight (Approx.) - 0.4oz (9g)