Nikon 40mm f/2.8G AF-S DX Micro Nikkor Lens - U.S.A. Warranty - Free Pro 52mm Circular Polarizer (CPL) Digital Filter ($19.95 Value) Compact and lightweight DX-format close-up lens The AF-S DX Micro-NIKKOR 40mm f/2.8G is great for taking high quality stills andcinematic HD D-Movies and is ideal for shooting general close-ups, delicate flowers, detailed collectables, copy photography, portraits, landscapes and more. Sharp images from infinity to life-size (1X) This standard close-up lens captures the finest details at any distance, including details practically impossible to detect with the human eye (at 1X magnification). Autofocus to 6.4 inches Continuous autofocusing from infinity to 6.4 inches (life-size / 1X). Close range Correction System (CRC) Using Nikon's innovative floating element design, each lens group moves independently to achieve focus - providing high performance at both near and far distances. Silent Wave Motor (SWM) A significant innovation in AF lens technology, Nikon's Silent Wave Motor uses ultrasonic (inaudible) vibrations - rather than a gear system - to focus the lens, providing incredibly smooth, silent and precise autofocus operation.