The Sigma 10-20mm f3.5 EX DC HSM features a fixed maximum aperture of f3.5 throughout the entire zoom range. This ultra-wide-angle zoom lens helps you shoot in low light, and creates beautiful bokeh to isolate your subject. Combined with a compact and light body, this makes it perfect for portrait, and landscape photographers.SIGMA DC Lenses
Optimized for DSLRs with APS-C size image sensors, these lenses leverage original technology fostered in the development of Sigma SD series cameras. The configuration of lens elements and the lens coatings represent the culmination of decades of optical engineering experience. The result is truly excellent performance in a compact, lightweight format that offers outstanding flexibility to the serious photographer.
The HSM (Hyper Sonic Motor)
ensures a silent, high-speed AF function. By optimizing the AF algorithm, smoother AF is achieved. Also, this lens offers full-time MF by rotating the focus ring of the lens while auto focusing. Without changing the AF/MF Focus Mode Switch, it allows faster focus adjustment.The Technical Details:
The maximum 109.7° angle of view makes possible bold use of perspective in expressive shots. ELD (Extraordinary Low Dispersion) and SLD (Special Low Dispersion) glass and aspherical lens elements help minimize optical aberrations and make possible a highly compact lens. Sigma's Super Multi-Layer Coating minimizes flare and ghosting, while the HSM ensures fast and quiet autofocusing.
More Reasons to Choose a SIGMA Lens:
Inspecting each and every lens with their proprietary Foveon-based A1 MTF measuring system, SIGMA delivers premium quality lenses.CRAFTSMANSHIP
“Made in Japan” craftsmanship is what makes SIGMA lenses high-performance, high-quality, and high-end.
The SIGMA USB DOCK accessory and exclusive software let you personalize the specification of your new Sigma lenses.
7 YEAR WARRANTY
Sigma stands behind its lenses with a 7 year international warranty. It guarantees your Sigma 10-20mm f3.5 EX DC HSM Lens against manufacturing defects for seven years from the date of the original purchase.