Photographic artists have been waiting for a full-featured, constant-aperture zoom lens. The wait is over. The A007 is a high-quality, highly functional, high-speed standard zoom lens covering the 24-70 mm focal range. It includes both Tamron's proprietary VC (Vibration Compensation) image stabilization to reduce shake and its USD (Ultrasonic Silent Drive) motor, enabling speedy, silent auto-focusing. This SP (Super Performance) series lens makes full use of specialized glass elements in its lens layout, designed with top priority on image quality, including three LD (Low Dispersion) elements and two XR (Extra Refractive Index) glasses. The A007 combines a constant f/2.8 maximum aperture and Tamron's rounded diaphragm for an ideal character of brilliant resolution and beautifully soft, natural-looking blur effects. It is also Tamron's first lens to feature Tamron's moisture-resistant construction, making it an ideal choice for outdoor shooting. Capture the finest details of your images in precisely the way you have always wanted to. Extend your art to the limits of your inspiration with the Tamron A007.