Description:
Sigma's 180mm F3.5 EX IF HSM macro lens lets you take life-size, 1:1 images without the use of accessories. When shooting at this magnification, you can be a full 18.1 inches from your subject, ideal when your subject may be easily disturbed. In addition to the life-size images, this lens also uses the silent HSM (hyper-sonic motor) so you can truly capture those hard-to-get images without disturbing your surroundings or subject. The apochromatic design of the optics, combined with two SLD (special low dispersion) glass elements, plus a floating inner-focus system, help control chromatic and spherical aberrations as well as astigmatism, optical problems that often effect the quality of your images. This effect gives you high-quality performance across the entire focusing range. This model is dedicated to Canon AF SLR cameras.
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