The superb macro-focus lens for both close-up and distant subjects. This versatile macro-focus lens covers a wide range of photographic applications, from close-up nature subjects to midrange telephoto shots -- making it ideal to carry on location or in the field. Mounted on the Sony® a (alpha) DSLR-A100 camera, it provides a 150mm focal length (35mm equivalent) -- and its superb sharpness and clarity give you professional results in every shooting situation.Sharp Macro FocusingBright f2.8 ApertureHigh Contrast and ResolutionFocus Range LimiteFocus Hold ButtonAuto ClutchCircular Aperture