This extension tube is designed for macro photography and is made of high-quality ABS material with copper contacts. It perfectly matches single lens reflex cameras and supports automatic focus. The tube allows the lens to be mounted at a closer distance for higher magnification. The set includes two rings of different lengths (10mm and 16mm) that can be used individually or combined to achieve various extension lengths. Magnification increases with the total length of the extension, enabling detailed close-up shots of small subjects. Using the extension tubes individually (10mm or 16mm) or in combination (10mm + 16mm = 26mm), the effective length of the lens changes accordingly. Supports precise TTL exposure and auto focus function. Built-in electronic contacts and driver ensure reliable performance. Compatible with Mini single E-mount NEX series cameras, including full-frame models. Made from advanced plastic material for stability and durability. Features: 1. Supports precise TTL exposure and auto focus 2. Built-in electronic contacts and driver 3. Compatible with E/FE, NEX3, NEX5, NEX6, NEX7, A5000, A6000, A7, A7M2 series 4. High-quality plastic construction for stable performance 5. Includes two extension rings (10mm and 16mm) for three different configurations 6. Upgraded internal circuitry for improved functionality during macro shooting 7. Secure locking bayonet mount ensures tight and stable connection 8. Enables high-magnification close-up photography Specifications: - Diameter: 6cm / 2.3 inches - Height: 4cm / 1.5 inches - Extension lengths: 10mm and 16mm (can be combined for 26mm) - Color: Black - Material: Metal and plastic Package Contents: 1 x Auto Focus Macro Extension Tube Note: Other accessories shown are not included. Due to lighting and display differences, the item color may vary slightly from the image. Measurement tolerance is +/- 1-3cm.