Sigma 50mm f/1.4 DG HSM Art Lens for Nikon F

The Sigma 50mm f/1.4 DG HSM Lens for Nikon F mount is a high-speed prime lens designed to deliver exceptional optical performance. It incorporates three Special Low Dispersion glass elements and one molded glass aspherical element to minimize sagittal coma flare and chromatic aberrations, resulting in sharp and clear images. The lens’s large diameter and floating system also correct for vignetting, ensuring consistent brightness across the frame. A Super Multi Coating is applied to reduce flare and ghosting, enhancing contrast and color fidelity.

The lens features a Hyper Sonic AF Motor with an optimized AF algorithm, providing quiet, smooth, and fast autofocus performance suitable for a wide range of situations. The AF motor allows full-time manual focusing control by simply turning the focus ring.

Sigma Global Vision – Art:
As part of Sigma’s Art line in the Global Vision series, this lens is designed to deliver remarkable optical performance, making it well-suited for creative and artistic applications.

Molded Glass Aspherical Element:
This lens employs an advanced optical structure to achieve high resolution, sharpness, and pleasing bokeh for subject separation. The molded glass aspherical element corrects for sagittal coma flare, allowing full utilization of the fast f/1.4 maximum aperture while maintaining sharpness and clarity. This design also minimizes vignetting, color blur, and other distortions, resulting in natural and appealing bokeh for selective focus and shallow depth of field techniques. By reducing these aberrations, the lens is also suitable for astrophotography and situations with point-light sources, effectively suppressing blur near the frame edges.

Special Low Dispersion Glass Elements:
The lens incorporates three SLD (Special Low Dispersion) glass elements to correct axial chromatic aberration throughout the entire focusing range. This ensures consistent image sharpness, clarity, and contrast regardless of the focus point or aperture setting.

Large Diameter Lens:
With its 85.4mm large diameter and the placement of the widest elements within the front group, the lens achieves enhanced peripheral brightness when working with larger apertures. This design also minimizes vignetting across the aperture range, resulting in greater clarity and detail across the entire image frame.

Super Multi-Layer Coating:
The lens features a Super Multi-Layer Coating that minimizes lens flare and ghosting, contributing to contrast-rich and color-neutral imagery, even in challenging backlit conditions.

Floating System:
A floating system adjusts the distance between lens elements during focusing, reducing the amount of lens movement required. This enables a minimum focusing distance of 1.3′ and a maximum magnification of 1:5.6. The floating system also contributes to high detail rendering capabilities throughout the entire focusing range.

Hyper Sonic AF Motor:
The integrated HSM (Hyper Sonic Motor) ensures quick and quiet autofocus performance. It is further complemented by an optimized AF algorithm, resulting in smoother focusing performance. The HSM allows full-time manual focus control by rotating the focus ring at any time.

Other Lens Features:
– Rounded nine-blade diaphragm for attractive bokeh.
– Constructed with a Thermally Stable Composite (TSC) material and traditional metals for precision and durability in various temperature conditions. The lens barrel is engraved with the year of production.
– Brass bayonet mount for accuracy and durability.
– Included lens hood with a rubber connection for a secure fit.
– Compatible with the optional Sigma USB Dock for fine-tuning lens characteristics and firmware updates.