RainbowImaging bayonet Lens Hood for PENTAX SMC DA 50-200mm F4-5.6 ED replaces PH-RBB 52MM
A lens hood provides multiple functions:First, it shades the lens from stray light, improving your contrast and image quality.Second, in inclement weather, it can assist in keeping moisture or wind-blown debris off the lens; Third, it protects the front barrel from the inevitable impacts against walls, door frames, and other real-life obstacles. This Janco lens hood is designed to replace the original Pentax PH-RBB 52MM Lens Hood is Compatible with PENTAX DA 50-200mm F4-5.6 ED lens