Brand new and high quality. Features: - Both the camera and lens sides of the adapter are made of precision-machined, chrome-plated aluminum. - The all-metal design ensures a secure lens fit while remaining easy to remove. - Note: While physically fitting, this adapter does not maintain automatic aperture (AE metering) or other automatic functions. - Precise fit and solid connection – no play, gap, or wobble when mounted, requiring no adjustments. - Designed for infinity focus while maintaining the correct registration distance needed to support CRC lenses or lenses with floating elements. - Features optical glass, supporting infinity focus. Suitable for: - M42 mount lenses - Nikon DSLR cameras (including D5600, D500, D5, D810A, D7200, D5500, D750, D810, D5300, D3300, Df, D610, D7100, D5200, D600, D3200, D800/D800E, D700, D700E, D300S, D3000, D3X, D90, D700 and more) Specifications: - Item Type: Focus for Infinity Lens Adapter - Material: Metal - Size: Lens Diameter: 55mm/2.1in, Height: 15mm/0.5in - Color: Black Note: - No retail package. - Please allow 1-3mm error due to manual measurement. Please ensure you do not mind before you bid. - Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!