Founded in 1961 as a lens manufacturer, Sigma has leveraged its original technologies to create unique products and assume its position as a leading photographic equipment provider, despite a relatively late start in the marketplace. Today, Sigma continues to be a leader in the highly competitive interchangeable lens market, thanks to its dedication to ongoing development of innovative products and an unstinting approach to quality control.
Today the standard for SLR cameras, the rear converter was originally a Sigma invention. A front conversion lens had to be designed specifically for a single master lens and tended to make the camera front-heavy. The rear conversion lens, inserted between the lens and the body solved both problems. Sigma’s innovation led to the user-friendly lens system with which photographers are familiar today.
Leveraging advanced optical design and precision manufacturing expertise, Sigma has developed for its SA mount lenses a flare- and ghost-reducing super multi-layer coating, HSM (Hyper Sonic Motor), the OS (Optical Stabilizer) anti-shake compensation function, FLD(“F” Low Dispersion ), ELD (Extraordinary Low Dispersion) and SLD (Special Low Dispersion) glass, aspheric elements, and other cutting-edge components and features. All Sigma standard, wide-angle, telephoto, macro, fisheye, and other lenses are designed to make best use of the exceptional image quality of the SD15.
Seeking always to help photographers achieve the best results possible while enjoying the full delight of photography, Sigma currently produces more than 45 different types of lenses, as well as camera bodies that support lens function at the highest level. Developed and manufactured to meet the highest standards in the industry, Sigma’s SA Mount lenses offer photographers the selection and reliable, responsive performance that make true creativity possible.