Sigma 50mm F1.4 DG HSM A Art Series Lens: L Mount - EX-DEMO

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The Sigma 50mm f1.4 DG HSM Art Lens is a fast standard-length prime designed to achieve high optical performance through the incorporation of both three Special Low Dispersion glass elements and one moulded glass aspherical element. These elements, coupled with an advanced optical design, work to minimize sagittal coma flare and chromatic aberrations in order to provide high image sharpness and clarity. The lens’ large diameter and floating system also help to correct for vignetting to ensure maintained peripheral brightness. A Super Multi Coating has been applied to lens elements, too, to reduce flare and ghosting for higher contrast and colour fidelity.

Features:
Aperture Range: f/1.4 to f/16
One Molded Glass Aspherical Element
Three Special Low Dispersion Elements
Super Multi-Layer Coating
Floating System & Large Diameter Design
Hyper Sonic AF Motor
Rounded Nine-Blade Diaphragm
Thermally Stable Composite Material
Brass Bayonet Mount
Compatible with Sigma USB Dock
Sigma Global Vision – Art
As part of the Art line within Sigma’s Global Vision series, the Sigma 50mm f1.4 DG HSM Art Lens is designed to achieve truly notable optical performance and is ideally suited for creative and artistic applications.

Moulded Glass Aspherical Element
The Sigma 50mm f1.4 DG HSM Art Lens has been designed using an advanced optical structure to achieve both high resolution and sharpness along with an aesthetic out-of-focus quality for greater subject separation. A moulded glass aspherical element corrects for sagittal coma flare and enables the full use of the fast f/1.4 maximum aperture with maintained sharpness and clarity. This design also works to minimize vignetting, colour blur, and other distortions helping to produce natural and pleasing bokeh for selective focus and shallow depth of field techniques. By reducing these aberrations, this lens is also well-suited to astrophotography or other situations with point-light sources due to its ability to suppress blur near the edges of the frame.

Special Low Dispersion Glass Elements
Three SLD (Special Low Dispersion) glass elements have been incorporated within the lens design to correct for axial chromatic aberration throughout the entire focusing range. This helps to ensure maintained image sharpness, clarity, and contrast regardless of focus point or aperture setting.

Large Diameter Lens
In designing the Sigma 50mm f1.4 DG HSM Art Lens with a large 85.4mm diameter, and placing the widest elements within the front group, greater peripheral brightness is more easily attained when working with larger apertures. This design also lends itself to minimizing vignetting throughout the aperture range for greater clarity and detail across the image frame.

Super Multi-Layer Coating
A Super Multi-Layer Coating has been applied to the Sigma 50mm f1.4 DG HSM Art Lens elements in order to minimize lens flare and ghosting and contribute to producing contrast-rich and colour-neutral imagery, even in backlit conditions.

Floating System
By employing a floating system, the distance between glass elements is adjusted during focusing in order to limit the amount of lens movement required when shooting. This floating system helps to realize a minimum focusing distance of 1.3′ with a maximum magnification of 1:5.6. Additionally, this design also contributes to high detail rendering capabilities throughout the entire focusing range.

Hyper Sonic AF Motor
The integrated HSM (Hyper Sonic Motor) realizes quick and quiet autofocusing, which is further complemented by an optimized AF algorithm to produce smoother focusing performance. The HSM also permits full-time manual focus control simply by rotating the focus ring at any time.

Specifications:
Focal Length 50mm
Maximum Aperture f/1.4
Minimum Aperture f/16
Lens Mount Leica L
Lens Format Coverage Full-Frame
Angle of View 46.8°
Minimum Focus Distance 1.31′ / 40 cm
Maximum Magnification 0.18x
Optical Design 13 Elements in 8 Groups
Diaphragm Blades 9, Rounded
Focus Type Autofocus
Image Stabilization No
Filter Size 77 mm (Front)
Dimensions (ø x L) 3.36 x 3.93″ / 85.34 x 99.82 mm
Weight 1.79 lb / 815 g