Compatible with Sony RX1R III Digital Camera: This Lens Hood is designed for use with and compatible with the Sony RX1 series compact digital cameras, including the RX1R III. This machined-metal, screw on flare-mount lens hood helps to block stray light from hitting the lens, helping to reduce lens flare and reflections. Additionally, the lens hood offers greater protection to the front element of the lens by creating a physical barrier to block accidental touching or scraping of the glass.