NEWYI M65‑M65 25‑55mm Camera Adjustable Focusing Helicoid Adapter Macro Extension Tube

The focusing helicoid adapter is the best choice for magnifying or altering lenses. It provides a focus system for lenses without a focus system. It can also be used as a macro tube to provide fine focus control for macro photography. The length of the focal length is 25mm/
1.0in(min) to 55mm/
2.2 in(Max), providing a 30mm/
1.2in adjustable distance for lens focusing. Made of aluminum alloy, black anodized, long service life, very good hand feel.