The Sigma 10-20mm f/3.5 EX DC HSM Lens for Canon is an ultra-wide zoom lens. It is designed specifically for Canon DSLR cameras with APS-C size sensors. This lens offers a super-wide perspective. It is perfect for capturing sweeping landscapes and grand interiors. A key feature is its constant f/3.5 maximum aperture. This ensures your exposure settings do not change as you zoom. The built-in Hyper Sonic Motor (HSM) provides fast and quiet autofocus. This is great for both photos and video.
As part of Sigma’s EX series, this lens features a high-quality build. The optical design incorporates Special Low Dispersion (SLD) glass. This helps to minimize chromatic aberrations for greater color accuracy. Aspherical elements are also used to control distortion. This ensures straight lines remain straight, which is vital in architecture. Sigma’s Super Multi-Layer Coating reduces flare and ghosting. It delivers sharp, high-contrast images even in backlit conditions. It is an excellent choice for any wide-angle photographer.
Technical Specifications:
Mount: Canon EF
Sensor Coverage: APS-C
Focal Length: 10 to 20mm
Aperture: Constant f/3.5
Autofocus Motor: Hyper Sonic Motor (HSM)
Optical Design: 13 Elements in 10 Groups
Special Elements: 2 ELD Elements, 1 SLD Element, 4 Aspherical Elements
Coating: Super Multi-Layer Coating
Minimum Focus Distance: 9.4 inches / 24 cm
Diaphragm Blades: 7
Filter Size: 82 mm
