Sigma 18-35mm f1.8 Review - a GROUNDBREAKING Lens! - DigiDIRECT TV Ep 036

Blunty reviews the new, groundbreaking, Sigma 18-35mm F/1.8 DC HSM Art Lens.
The Sigma 18-35mm 1.8 DC HSM is the first wide-angle to standard focal length zoom lens to achieve a large constant aperture of f/1.8. Designed specifically for APS-C sized sensors, the Sigma 18-35mm 1.8 DC HSM is truly a benchmark product.

"Sigma's 18-35mm f1.8 DC A Series features a fast, bright constant f/1.8 maximum aperture which is designed for use with APS-C-sized sensors and offers a range of 28.8-56mm in 35mm-equivalent focal length"
Lens mount: Canon EF, Nikon F (DX), Pentax K AF, Sony Alpha


The Sigma 18-35mm f1.8 DC A Series HSM lens integrates one aspherical element into its construction as well as Special Low Dispersion (SLD) glass to help minimise 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 colour 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 polarising 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 Optimisation Pro software, such as AF speed and focusing limitations.

Key Features

- 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



DigiDIRECT TV is a photography centric web-show, lead by Blunty and backed by DigiDiRECT.com.au your leading digital camera experts. Australian resellers of popular digital camera and digital SLR brands such as Canon, Nikon, Sony, Panasonic, Pentax, Olympus and more...
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