Features:
- Dedicated to Pentax AF SLR cameras
- Takes life-size, 1:1 images, without the use of accessories
- Uses the silent HSM (Hyper Sonic Motor)
- Apochromatic design, 2 SLD (Special Low Dispersion) glass elements, floating inner-focus system
- Chromatic, spherical aberrations, and astigmatism virtually eliminated
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, like birds, insects, and animals. 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 and a floating inner-focus system, helps control chromatic and spherical aberrations as well as astigmatism, optical problems that often affect the quality of your images. This effect gives you high-quality performance across the entire focusing range. This model is dedicated to Pentax AF SLR cameras.
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