FX-format compatible, 5x telephoto zoom lens covering the focal-length range from 80 to 400 mm. High optical performance is realized with super ED glass (x1) and ED glass (x4) elements. Nano Crystal Coat effectively reduces flare and ghosting. VR (Vibration Reduction) minimizes camera shake by offering a shutter speed equivalent to 4.0 stops* faster *Based on CIPA Standard. This value is achieved when attached to an FX-format digital SLR camera, with zoom set at the maximum telephoto position. Silent Wave Motor (SWM) offers quiet AF operation while achieving the highest level AF speed in this class. Three focus modes are available — A/M (autofocus with manual override, AF priority), M/A (autofocus with manual override, manual priority) and M (manual focus). AF is possible even with a 1.4x teleconverter when attached to an f/8-compatible camera.