1. Precision Focus Control: This camera focusing helicoid adapter offers smooth and precise focus adjustment from 25mm to 55mm, making it ideal for macro photography where fine details matter. Its helicoid mechanism ensures accurate focusing for lenses without built in focus systems.
2. Versatile Compatibility: The Macro extension tube features and M42 threaded mounts, allowing seamless integration with various lenses and camera systems. It's perfect for adapting vintage lenses to modern digital cameras, extending their usability.
3. Enhanced Image Quality: Designed with a matte black interior, this focusing helicoid tube minimizes internal reflections and , ensuring clearer images with better contrast. The anti reflective coating helps maintain optical performance in diverse lighting conditions.
4. Durable Construction: Crafted from lightweight yet sturdy aluminum alloy, the 25‑55mm Macro extension tube is built to last. The black anodized finish provides added resistance to wear while offering a comfortable grip during use.
5. Optimized for Macro Photography: The focusing helicoid adapter replaces traditional extension tubes, delivering smoother focus transitions and greater control over magnification. Its compact design makes it a practical tool for capturing intricate close up shots.

Specification:
Item Type: M58-M42 25-55mm Focusing Tube
Color: Black
Material: Aluminum Alloy
Focusing Range: 25-55mm / 0.98-2.17in
Female Thread: M58
Male Thread: M42

packing list:
1 x Focusing Tube