Premium Aluminum Alloy Construction: This focusing tube adapter ring is crafted from high-quality aluminum alloy using a CNC integrated molding process. Its robust construction ensures durability and a long service life, making it a reliable choice for photographers seeking quality and longevity in their gear. Oxidation and Corrosion Resistance: The surface of the adapter ring is treated with an oxidation process, providing excellent resistance to corrosion and wear. This ensures that the accessory maintains its sleek appearance and functionality over time, even with frequent use in various environments. Anti-Reflective Inner Surface: To prevent unwanted reflections that can affect the quality of your images, the inner side of the adapter ring undergoes an extinction treatment. This feature is essential for maintaining the integrity of your photos, delivering clear and sharp results every time. Versatile Macro Focusing Range: Supporting a focusing range of 17-31mm (0.7-1.2 inches), this adapter ring doubles as a macro focusing tube. It expands your creative possibilities by allowing you to capture intricate details with ease, perfect for macro photography enthusiasts. Lightweight and Portable Design: Despite its sturdy build, the focusing tube adapter ring is lightweight and portable, making it a convenient accessory for photography lovers. It's easy to carry and integrate into your camera setup, providing flexibility and enhancing your shooting experience wherever you go. Enhance your photographic capabilities with this versatile and durable Focusing Tube Adapter Ring. Its combination of high-quality materials, innovative design, and macro functionality makes it an invaluable tool for photographers looking to explore new dimensions in their work. Whether capturing stunning close-ups or ensuring high-quality images, this adapter ring is an essential addition to your camera accessories.