NEWYI M42‑M39 12‑19mm Aluminium Alloy Refit Amplification Lens Macro Lens Focusing Tube

Feature: 1. The focusing tube is the best choice for zooming in or changing the lens. It provides a focusing system for lenses without a focusing system. 2. Can also be used as a macro tube to provide fine focus control for macro photography. 3. The length of the focal length is 12mm0.5in (minimum) to 19mm0.7in (maximum), which provides an adjustment distance of 7mm0.3in for lens focusing. 4. Made of aluminum alloy, black anodized, longer service life, excellent hand feeling. 5. The inner wall of the focusing tube is treated with extinction to avoid the influence of reflected light on imaging. 6. Use universal M42 and M39 threaded interface, strong versatility, easy to transfer. 7. The focusing tube allows the idle old lens to be used for shooting with a digital camera. Specification: Condition: 100percent brand newItem type: Focusing TubeMaterial: aluminium alloyColor: blackWeight: Approx. 56g Focusing range: Approx. 12-19mm0.5-0.7in Interface: Female port: M42 threaded mount Male port: M39 threaded mount. Package List: 1 x Focusing Tube