The Nikon AF-S VR 105mm f/2.8G IF-ED brings the benefits of vibration reduction (VR) to the domain of Macro photography. It offers high-resolution, high-optical performance for both digital and 35mm film format SLR cameras. When used with digital cameras, equivalent focal length in 35mm terms is 157.5mm. This lens incorporates Nikon's second-generation vibration reduction system (VR II) that allows flexible hand-held shooting by stabilizing the image to the equivalent stability of a shutter speed that is 4 stops faster when compared with a conventional lens. This in effect eliminates image blur caused by camera shake, particularly when shooting in low-light conditions. Note: G-type lenses are fully compatible with all current camera models (as of 01/04). The older camera models F4, N90/s, N70, N8008/s, N6000 will only work in Program and Shutter Priority modes. Note: VR feature will only work with Nikon's F6, F5, F100, N80, N75, N65, D100 & D1 and D2-series (or any newer model) cameras. Note: AF-S feature is not supported by certain camera models. An ED glass element minimizes chromatic aberration. Nano Crystal Coat drastically reduces flare ensuring finely detailed, clear images. Vibration Reduction (VR) minimizes image blur caused by camera shake (cancelable) Internal Focusing (IF) design for smoother focusing and better body balance Built-in M/A switch enables instant switching from autofocus to manual focus Silent Wave Motor for ultra-fast, ultra-quiet AF The rounded diaphragm (9 blades) makes out-of-focus elements appear more natural