The focus ring is the best choice for magnifying or altering lenses. It provides a focusing system for lenses without a focusing system.
It can also be used as a macro tube to provide fine focus control for macro photography.
Support 25‑55mm/1‑
2.2in focusing range, provides a 30mm/
1.2in adjustable distance for lens focusing.
Made of high quality aluminium alloy material, black anodized for longer service life and excellent hand feel.