Features 1、Composed of two different rings, including 12mm + 24mm, which can be used individually (12mm / 24mm) or in combination (12mm + 24mm) for other focal distance. 2、Built-in electronic pin, advanced locking pin can pull the tube connector to take closer photos at higher magnification, thus achieving macro effect with excellent photo quality. 3、Support camera TTL metering, automatic focusing function and EXIF information transmission, only according to the actual metering conditions for shooting, very convenient. 4、Automatic focusing, adjustable aperture, fast and smooth focusing experience, compatible with camera TTL metering and AE mode. 5、Lightweight body, frosted surface, exquisite workmanship, sturdy and durable. 6、Metal material, anodic oxidation, inner wall extinction treatment, gold-plated metal contacts. Specification Condition: 100% Brand New Item Type: Macro Adapter Ring Brand: VILTROX Model: DG-Z Material: Metal Color: Black Fitment: for Nikon Z Mount Camera Feature: Automatic Focusing, Adjustable Aperture Weight: Approx. 153g Ring Length: 12mm + 24mm Package List 1 x 12mm Macro Adapter Ring 1 x 24mm Macro Adapter Ring 1 x Manual 2 x Dustproof Cover