DG-EOS M Automatic Extension Tube 10mm and 16mm Auto Focus for Canon EF-M Mount Series Mirrorless Camera and Lens Features: DG-EOS M extension tube for Canon EF-M mount is an accessory, specially designed for Canon EF-M mount lenses to shoot at closer distance with higher magnification. Support camera TTL features and AE mode. In most of case, only one tube is enough to achieve macro effect with excellent photo quality. Can be used alone or combined, which can achieve 3 different kind of magnification and work perfectly with camera's auto focus. Since the magnification changes according to the focal length of the lens, you can easily make close-up shots of small subjects, insects or flower. Furthermore, electronics signals between the camera and lens are transferred through the electronic contacts of the DG-EOS M extension tube for Canon EF-M mount lenses, enabling you e all of the camera's shooting modes. But depending on the shooting conditions, exposure compensation is required. Built-in gold-plated electronic contacts, adopt high strength aluminum alloy bayonet, durable and exquisite, perfect match and better transmission. Specifications: Model: DG-EOS M Tube Size: 10mm, 16mm Material: Quality plastic and metal Compatible Camera: For Canon EF-M mount mirrorless series camera Compatible Lens: For Canon EF-M mount series lenses Item Weight: 59g / 2.1oz Package Size: 8.5 * 8.5 * 6cm / 3.3 * 3.3 * 2.4in Package Weight: 94g / 3.3oz Package List: 1 * DG-EOS M extension tube set 1 * User manual (English & Chinese) Note: Camera and lens are not included.