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The world's first 600mm lens with an Image Stabilizer for added steadiness and sharpness when working at slower shutter speeds. It shares the same lightweight, weather-resistant construction as the 300, 400 and 500mm IS Super Telephoto lenses, as well as their improved control layout, improved weight distribution, and mechanical manual focus.
Flourite & UD elements eliminate secondary spectrum chromatic aberration
AF speed is the fastest in the world
Full-time manual focus override
AF Stop function shuts off autofocus when an obstruction appears
Dust & moisture resistance made exceptional by magnesium alloy lens barrel and new rear gasket at lens mount
Two-stage image stabilization; dual-axis camera shake correction or vertical axis only(for panning)
3-stage focus limiter
Focus preset function allows for returning to a specifically set focus by turning a ring in front of the focus ring