Designed for DX-format cameras AF-S DX Micro-NIKKOR 40mm f/2.8G Lens from Nikon will allow users to get true 1:1 magnification for extremely close-up imaging. It has a 60mm equivalent focal length in FX format along with a capable aperture range of f/2.8 to 22. Also, it has the Close-Range Correction system to ensure image quality is maintained at such close angles. Continuous quiet autofocus from infinity to 6.4 inches with a Silent Wave Motor AF system, and quick switching from autofocus to manual focus and back will keep you from missing any photo opportunities. The 7-blade diaphragm delivers a lovely, natural-looking background blur, and Nikon's Super Integrated lens coating gives you reduced lens flare and improved color consistency. Compact and Lightweight DX-Format Close-Up Lens Sharp Images from Infinity to Life-Size (1X) Stunning Portraits and Landscapes, Too Natural Background Blur (Bokeh) Superior Close-Range Focusing Quiet Autofocus Quick Switching from AF to MF Reduce Lens Flare and Ghosting