The Sigma 40mm f/1.4 DG HSM Art is a wide field of view lens suitable for everything from street to landscape photography. The fast maximum aperture of f/1.4 is ideal for low-light work and also offers greater control over focus position when using shallow depth-of-field techniques. Comprising 16 elements in 12 groups, this lens includes two low F-dispersion (FLD) and three special low dispersion (SLD) elements, as well as aspherical elements to reduce chromatic and spherical aberrations and colour fringing for clarity and sharpness.
The electromagnetic aperture mechanism provides greater stability in exposure control, which is especially beneficial when working at fast continuous shooting rates.
With distortion of 1% or less and sagittal coma corrected to the limit, the SIGMA 40mm F1.4 DG HSM Art features uniform optical performance across the sensor to become the ultimate large-diameter standard lens with 8K-compatible resolution. Like the other lenses in the same ART series, this 40mm lens is coated with Super Multi Coating that eliminates flare and ghosting.
It features a hypersonic HSM motor to produce fast, smooth and quiet autofocus performance that is complemented by an optimised AF algorithm to produce smoother focusing performance. HSM also allows full-time manual focus control by simply turning the focus ring at any time. In addition, a rounded nine-bladed diaphragm contributes to capturing images with an attractive bokeh effect.
This lens features a water and oil repellent coating on its front lens which together with its dust and splash resistant structure makes it a lens that can be used in any climate and weather condition. Sigma's entire ART series features Sigma's high-precision, rugged brass bayonet.
Features of SIGMA 40mm F1.4 DG HSM Art lens:
- EF-Mount Lens/Full-Frame Format
- Aperture Range: f/1.4 to f/16
- Three FLD Elements, Three SLD Elements
- One Aspherical Element
- Super Multi-Layer Coating
- Hyper Sonic AF Motor, Manual Override
- Weather-Sealed, Protective Front Coating
- Rounded 9-Blade Diaphragm
- Compatible with Sigma USB Dock