From the Manufacturer

This is the world's first AF-S VR super-telephoto 200-400mm zoom lens. The Nikon 200-400mm f4G ED-IF AF-S VR Zoom Nikkor telephoto lens features Nikon's remarkable Vibration Reduction (VR) technology and is designed to work seamlessly with Nikon's digital SLR cameras. The lens offers sports, action, bird, and wildlife photographers a high level of quality, precision, and performance. With VR (Vibration Reduction), photographers to take high-quality handheld shots indoors and in dark locations at shutter speeds three stops slower without compromising the sharpness of the picture.

Features:

• Combines four fixed focal length super-telephoto lenses into a single compact super-telephoto AF Zoom Nikkor lens.
• VR operation offers the equivalent of using a shutter speed 3 stops faster.
• Two VR Modes: Normal mode or Active Mode for when taking pictures with extreme movement.
• Automatically detects when photographer is panning and compensates.
• Compatible with Nikon TC-14E II, TC-17E II, and TC-20E II Teleconverters, AF operation only with TC14E II.
• Exclusive Silent Wave Motor enables ultra-high-speed autofocusing with exceptional accuracy and powerful super-quiet operation.
• 4 Extra-Low Dispersion (ED) glass elements minimizes chromatic aberration and provides higher resolution and superior contrast.
• Minimum focus distance of 6.2 feet at all focal lengths.
• Internal Focusing (IF) design for smoother focusing and great body balance.
• M/A mode enables instant switching from autofocus to manual with virtually no time lag even during AF servo operation.
• No power consumption during manual focus operation.
• Rounded diaphragm (9 blades) for natural blur.
• Nikon D-type design provides precise distance information for flash and ambient light exposure processes.
• Detachable tripod mounting collar provided.
• G design enables apertures to be selected from select Nikon AF SLR camera bodies.

Product Description
Vibration Reduction / Combines four fixed focal length super-Telephoto lenses into a single compact super-Telephoto / For Nikon SLR Internal Focusing (IF) design for smoother focusing and great body balance. M/A mode enables instant switching from auto focus to manual with virtually no time lag even during AF servo operation. No power consumption during manual focus operation. 9 blade rounded diaphragm for natural blur. Nikon D-type design provides precise distance information for flash and ambient light exposure processes. Detachable tripod mounting collar provided. G-design enables apertures to be selected from select Nikon AF SLR camera bodies.