The SAL-2470Z Carl Zeiss Vario-Sonnar f2.8 24-70mm Zoom Lens is an excellent choice for a wide range of photo applications -- a lens you can put on and leave on, providing large-aperture brightness that’s easy to carry (35mm equivalent: 36-105mm).  Features include a SSM (Super Sonic wave Motor) designed for fast, silent auto-focus; pro-quality Carl Zeiss T* coated optics to reduce lens flare; and 17-element design with two aspherical and two ED glass lens elements to minimize distortion and virtually eliminate chromatic aberration.  It also benefits from the Super SteadyShot image stabilization built into every Sony system DSLR.

Features:

• Compact design, all around versatility
• Superior large-aperture performance
• In-camera image stablization
• Super sonic wave motor
• Carl Zeiss T* coating
• Multi-element design
• Glass-molded aspherical lens elements
• Extra-low Dispersion glass

Includes:

• Front and rear lens caps
• SH0005 petal lens hood
• Lens carrying case

• Aperture (Max.) : f/2.8
• Aperture (Min.) : f/22 - 29
• Aspheric Elements : 2 aspheric
• Distance Encoder : Yes
• Distance Scale : Yes
• Filter Diameter : 77mm
• Focal Length : APS: 24 - 70mm (35mm Equivalent: 36 - 105mm)
• Lens Groups-Elements : 17 elements, 13 groups
• Lens Type : Standard Zoom
• Magnification : x 0.25
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• Dimensions: 3 1/4 x 4 3/8” (83 x 111mm)
• Weight: 2 lb. 1 oz (995 g)