Sigma 14mm f/1.8 DG HSM Art Overview
Both fast and wide, the Leica L-mount 14mm f/1.8 DG HSM
from Sigma is a unique wide-angle prime designed to produce high-resolution,
well-corrected imagery. As part of the Art line of lenses, this lens has a
focus on image quality and rendering, and utilizes both FLD and SLD glass
elements to control chromatic aberrations and colour fringing for notable
clarity. Four aspherical elements, including the front large-diameter
precision-molded glass element, also contribute to reducing distortion and
spherical aberrations for improved sharpness and accuracy. Additionally, a
Super Multi-Layer Coating has been applied to individual elements to suppress
lens flare and ghosting for greater contrast when working in strong lighting.
Well-suited to astrophotography and low-light outdoor shooting, this lens
presents a unique blend of a broad perspective and fast, flexible performance.
Complementing the optical performance is an equally adept
Hyper Sonic Motor, which provides fast, smooth, and near-silent autofocus
performance. This focusing motor also enables full-time manual focus override
at any time just by rotating the focus ring for refined manual control and
focusing as close as 10.6". The lens barrel is constructed using a
Thermally Stable Composite material, which supports working in a wide variety
of temperatures and conditions, and the lens mount is constructed from brass
for long-term durability and mounting accuracy.
part of the Art line within Sigma's Global Vision series, this lens is designed
to achieve truly notable optical performance and is ideally suited for creative
and artistic applications.
wide-angle lens is designed for full-frame Leica L-mount mirrorless cameras,
however it can also be used with APS-C models where it will provide a 21mm
equivalent focal length.
f/1.8 maximum aperture is well-suited for working in low and difficult lighting
F Low Dispersion (FLD) and four Special Low Dispersion (SLD) elements are
featured in the optical design, and help to reduce colour fringing and
chromatic aberrations for improved clarity and colour accuracy.
aspherical elements, including one large, 80mm-diameter precision-molded glass
aspherical element, help to minimize distortion and spherical aberrations for
Super Multi-Layer Coating has been applied to lens elements in order to
minimize lens flare and ghosting and contribute to producing contrast-rich and colour-neutral
imagery, even in backlit conditions.
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.
lens is constructed using a Thermally Stable Composite (TSC) material, along
with traditional metals, for greater precision and use in wide temperature
bayonet mount is constructed from brass for ensured accuracy and durability.
Additionally, rubber sealing is incorporated in the mount design to render it
dust- and splash-resistant.