Sigma 18-35mm f/1.8 DC HSM Art Lens for Canon EF
The Sigma 18-35mm f/1.8 DC Art Series HSM lens in Canon mount integrates one aspherical element into its construction as well as Special Low Dispersion (SLD) glass to help minimize various aberrations and distortions throughout the zoom range as well as provide greater image sharpness and clarity. A Super Multi-Layer Coating has also been applied to lens elements to reduce surface reflections, lens flare, and ghosting to produce images with higher contrast and color fidelity. The lens barrel design is constructed from a Thermally Stable Composite (TSC) material that is akin to metal in texture and resistance to temperature and environmental changes while also remaining lightweight and compact.
An internal focusing and zooming mechanism also helps to maintain a compact and consistent overall length and a non-rotating front ring also better enables the use of circular polarizing filters. For control of focus, a Hyper Sonic Motor (HSM) is used to ensure fast, precise, and quiet focusing capabilities that are well suited to continuous shooting and movie recording. Also, for updating lens firmware and fine-tuning its nuances to best suit your personal shooting, this lens is compatible with the Sigma USB Dock. The dock allows you to specify certain parameters and other settings through the Sigma Optimization Pro software, such as AF speed and focusing limitations.
This lens features the latest SIGMA technologies to offer F1.8 throughout the zoom range and unparalleled performance
Impressively bright constant f/1.8 maximum aperture is well-suited for working in low-light conditions
Five Special Low Dispersion (SLD) elements are featured in the optical design and help to reduce color fringing and chromatic aberrations for improved clarity and color accuracy
Specifications:
| Focal Length: | 18 to 35mm (35mm Equivalent Focal Length: 28.8 to 56mm) |
| Maximum Aperture: | f/1.8 |
| Minimum Aperture: | f/16 |
| Lens Mount: | Canon EF |
| Lens Format Coverage: | APS-C |
| The angle of View: | 76.5° to 44.2° |
| Minimum Focus Distance: | 11.02" / 28 cm |
| Maximum Magnification: | 0.23x |
| Macro Reproduction Ratio: | 1:4.3 |
| Optical Design: | 17 Elements in 12 Groups |
| Diaphragm Blades: | 9, Rounded |
| Focus Type: | Autofocus |
| Image Stabilization: | No |
| Filter Size: | 72 mm (Front) |
| Dimensions (ø x L): | 3.07 x 4.76" / 78 x 121 mm |
| Length at Maximum Extension: | 4.77" / 121.1 mm |
| Weight: | 1.78 lb / 810 g |
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