40.5MM UV Ultraviolet Filter for Sony Alpha a6500, a6300, a6000, a5000, a5100, a3000, Compact System Camera with SELP1650 16-50mm Power Zoom Lens (40.5mm) Protects lenses from dust, moisture, scratches, and other damage. These filters can be kept on the camera at all times. UV filters reduce haze and improve contrast by minimizing the amount of ultraviolet (UV) light. Especially useful in areas of high altitude or snow, eliminating the undesirable blue cast. - COMPATIBLE Sony 16-50mm f/3.5-5.6 OSS Alpha E-mount Retractable Zoom Lens. 40.5mm diameter