Sigma AF 18-35mm f/1.8 DC HSM

Truly a revolutionary product, the Sigma 18-35mm 1.8 DC HSM is the first wide-angle to standard zoom lens to achieve a large aperture of 1.8. Designed specifically for APS-C sized sensors, the...

Sigma AF 18-35mm f/1.8 DC HSM

Sigma AF 18-35mm f/1.8 DC HSM

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The Sigma 18-35mm f1.8 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 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.

Optimized Lens Design
One aspherical lens element, as well as the incorporation of SLD glass, help to minimize the appearance of distortions and aberrations throughout the zoom range and provide clear imagery with enhanced sharpness. A Super Multi-Layer Coating also benefits the image quality by reducing reflections and flare and contributing to greater overall contrast and fidelity.

Hyper Sonic AF Motor
The Hyper Sonic Motor provides fast, quiet, and smooth auto focusing that is well-suited for use with video applications. This AF motor can also be manually overridden at any time by rotating the focusing ring, giving you the ability to fine-tune image sharpness through manual focusing.

Art Lens Line
This lens is part of Sigma's Art line; deeming it well-suited to creative image making due to its large, constant f/1.8 maximum aperture and ability to produce aesthetic bokeh by way of a nine-blade circular diaphragm. The range of focal lengths it covers, from wide-angle to normal-length, is nicely situated for everyday and artistic shooting applications.

- Aperture Range: f/1.8-16
- Fast Constant Maximum Aperture
- Designed for APS-C-Sized Sensors
- 35mm Equivalent Focal Length: 28.8-56mm
- Hyper Sonic AF Motor
- Internal Focusing and Zoom Design
- One Aspherical Element and SLD Glass
- Super Multi-Layer Coating
- Compatible with Sigma USB Dock

Brand Sigma
Focal Length 18 - 35mm
Comparable 35mm Focal Length: 28.8 - 56 mm
Lens type Zoom lens
Aperture Range Maximum: f/1.8
Minimum: f/16
Max Format size APS-C
Camera Mount Canon EF
Lens Format Canon (APS-C)
Lens mount Canon EF, Nikon F (DX), Pentax KAF, Sony Alpha
Minimum Focusing Distance 11“ (27.94 cm)
Focus Type Autofocus
Minimum aperture F22.0
Image Stabilizer No
Diaphragm Blades 9
Angle Of View 73.8 - 42.2
Elements 17
Groups 12
Groups 12
Diaphragm Blades 9
Filter Size Front:72 mm
Autofocus Yes
Elements 17
Motor Type HSM (Hypersonic Motor)
Weight 811
Dimensions (DxL) Approx. 3.07 x 4.76“ (78 x 121 mm)
Diameter 78 mm
Weight 811
Length 121 mm
Sealing No
Filter Thread 72 mm
Lens Hood Sigma Petal Type
Focal Length 18 to 35mm
Comparable 35mm Focal Length: 28.8 to 56 mm
Dimensions(DxL) 78 x 121 mm
Weight 811 g
Filter Thread Size Front: 72 mm
Autofocus Yes
Aperture Maximum: f/1.8
Minimum: f/16
Camera Mount Type Canon EF
Format Compatibility Canon (APS-C)
Angle of View 73.8 to 42.2
Minimum Focus Distance 27.94 cm
Maximum Reproduction Ratio 1:4
Optical Design 17 Elements in 12 Groups
Diaphragm Blades 9