Red Filter: Suitable for enhancing the red tones in the picture, making the scene more vivid and layered. Usage Scenes: For shooting scenes such as maple leaves, sunset, evening clouds, burning clouds or desert dunes in the evening. Aluminum Alloy Frame: CNC precise machining, screw thread installation, quick and convenient disassembly and assembly. Multilayer Nano Coating Process: Lens has waterproof, oilproof, anti fouling properties to protect the lens from dust and scratches. Strong Compatibility: There are five kinds of interfaces: 67mm/2.6in, 62mm/2.4in, 58mm/2.3in, 55mm/2.2in, 52mm/2.0in suitable for 67mm, 62mm, 58mm, 55mm, 52mm interface lens. Red Filter: Suitable for enhancing the red tones in the picture, making the scene more vivid and layered. Usage Scenes: For shooting scenes such as maple leaves, sunset, evening clouds, burning clouds or desert dunes in the evening. Aluminum Alloy Frame: CNC precise machining, screw thread installation, quick and convenient disassembly and assembly. Multilayer Nano Coating Process: Lens has waterproof, oilproof, anti fouling properties to protect the lens from dust and scratches.