Enhance your photography with this precision-engineered Focusing Helicoid Adapter, designed to provide smooth and accurate focus control for lenses lacking a built-in focusing system. Crafted from high-quality aluminum alloy with a sleek black anodized finish, this adapter ensures durability, excellent hand feel, and long-lasting performance. Its inner surface features extinction treatment to minimize reflections, delivering clearer and sharper images. Key Features: Universal Compatibility: Equipped with an M52 female mount and M42 male helicoid mount, this adapter effortlessly connects a wide range of lenses to digital cameras, allowing you to revive and utilize older lenses with ease. Adjustable Focusing Range: Supports a versatile focusing range of approximately 3690mm (1.43.5 inches), providing up to 54mm (2.1 inches) of adjustable focusing distance for precise macro and close-up photography. Macro Photography Support: Functions as a macro extension tube, enabling fine focus adjustments for detailed close-up shots and enhancing your creative possibilities. Premium Aluminum Alloy Construction: Made from robust aluminum alloy with a black anodized finish, offering excellent wear resistance, a comfortable grip, and extended service life. Anti-Reflection Design: Inner extinction treatment reduces internal reflections, improving image quality by preventing unwanted glare and light interference. Lightweight and Portable: Weighing approximately 155g (5.5oz), this compact adapter is easy to carry and integrate into your camera setup without adding bulk. Specifications: Item Type: Focusing Helicoid Adapter Material: Aluminum Alloy Color: Black Weight: Approx. 155g / 5.5oz Focusing Range: Approx. 3690mm / 1.43.5 inches Interface: Female Mount M52 Helicoid Mount; Male Mount M42 Helicoid Mount Package Includes: 1 x Focusing Helicoid Adapter This Focusing Helicoid Adapter is an essential tool for photographers seeking enhanced focusing control and versatility. Whether adapting vintage lenses or achieving precise macro shots, it offers reliable performance and exceptional build quality to elevate your photographic experience.