The Promaster Spectrum 7 Auto Extension Tube Set Canon EF is a high-quality macro accessory designed to turn your standard Canon EF/EF-S lenses into powerful close-up tools. Unlike basic manual tubes, this DG version features full electronic contacts, allowing autofocus and aperture control to work seamlessly between your camera and lens. Perfect for macro photography such as insects, jewelry, textures, and product shots. Key Features 🔍 Macro Conversion Turns any compatible lens into a macro lens Full Electronic Contacts (DG) Supports AF & Auto Exposure 📷 Modular Tube System Use individually or stack for higher magnification 🪄 No Optical Elements Maintains original image quality 🛡 Metal Mount Construction Strong and durable fit 📊 Technical Specifications Mount Type: Canon EF / EF-S Tube Sizes: 12mm, 20mm, 36mm Connectivity: Full electronic (AF + aperture control) Material: Metal mounts 📦 Whats Included 12mm Extension Tube 20mm Extension Tube 36mm Extension Tube Front Cap Rear Cap 🛠 Condition Excellent condition 🎯 Ideal For Macro photography 🐜 Product photography 📦 Jewelry & detail shots 💍 Creative close-up work 📸