Enhance your photography experience with this high-quality Focusing Helicoid Adapter, designed to provide precise focus control for lenses without built-in focusing systems. Crafted from durable aluminum alloy with a sleek black anodized finish, this focusing tube offers excellent durability and a premium hand feel, ensuring long-lasting performance for both amateur and professional photographers. Key Features: · Precise Focus Control: Supports a focusing range of approximately 10-15mm (0.4-0.6in) with a 5mm (0.2in) adjustable distance, allowing fine-tuned focusing adjustments for macro and standard photography. · Versatile Macro Tube Functionality: Functions as a macro extension tube, enabling close-up photography with enhanced focus accuracy for capturing intricate details. · High-Quality Aluminum Alloy Construction: Made from premium aluminum alloy with black anodized treatment for superior wear resistance, corrosion protection, and an elegant matte finish. · Anti-Reflection Inner Coating: The inner side of the focusing tube features an extinction treatment to minimize internal reflections, ensuring clear and sharp imaging results. · Universal Compatibility: Equipped with an M42 female helicoid mount and an M39 male helicoid mount, providing broad compatibility and easy transfer between lenses and digital cameras. · Lightweight and Portable: Weighing approximately 47g (1.7oz), this compact adapter is easy to carry and handle, making it an ideal accessory for photographers on the go. Specifications: · Item Type: Focusing Helicoid Adapter · Material: Aluminum Alloy · Color: Black · Weight: Approx. 47g (1.7oz) · Focusing Range: Approx. 10-15mm (0.4-0.6in) · Interface: Female Mount: M42 Helicoid Mount; Male Mount: M39 Helicoid Mount Package Includes: · 1 x Focusing Helicoid Adapter This focusing helicoid adapter is the perfect solution for utilizing vintage or manual lenses with modern digital cameras, enabling precise focus adjustments and macro photography capabilities. Its robust build and universal mounting system make it an essential tool for photographers seeking enhanced creative control and image quality.