The Silent Wave Motor (SWM) and internal focus system provide swift autofocus with superior accuracy and ultra-quiet operation. This G-type lens does not feature an aperture ring on the lens body, resulting in a lighter and more compact lens. Aperture changes are designed to be done via the camera's command dial. A magnesium alloy build with dust and moisture resistant sealing allow this lens to be used in inclement conditions and a built-in lens hood offers a degree of protection to the otherwise exposed front lens element.
This version is originally intended for sale outside the USAF Mount Lens/FX Format Aperture Range: f/2.8 to 22 Two ED Glass & Three Aspherical ElementsF Mount Lens/FX Format Aperture Range: f/2.8 to 22 Two ED Glass & Three Aspherical ElementsInternal Focus; Manual Focus Override Minimum Focus Distance: 11" Dust and Moisture ResistantBuilt-In Petal-Style Lens Hood Rounded 9-Blade Diaphragm