KEY FEATURES
- E-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
SIGMA 40MM F/1.4 DG HSM ART OVERVIEW
Designed within the rigorous tolerances of a cine lens, the
Sony E-mount Sigma 40mm f/1.4 DG HSM Art Lens is a wide normal-length lens
characterized by a bright design and sophisticated optical layout. The fast
f/1.4 maximum aperture helps to achieve shallow depth of field and selective
focus effects, and also suits working in difficult lighting conditions. The
optical design incorporates a series of low dispersion and aspherical elements,
which help to improve sharpness and clarity by controlling both spherical and
chromatic aberrations. A Super Multi-Layer Coating is also featured, and helps
to minimize flare and ghosting for greater contrast and color accuracy when
working in strong lighting conditions. Complementing the imaging capabilities, the lens sports a
Hyper Sonic Motor to produce quick, smooth, and quiet autofocus performance
with full-time manual focus override. The physical design features a brass
bayonet mount, which offers rigidity and mounting precision along with a seal
to guard against dust and moisture. Additionally, a rounded nine-blade
diaphragm contributes to a pleasing bokeh quality.
- As 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.
- Short-normal prime is designed for full-frame Sony E-mount
mirrorless cameras, however is also suitable for APS-C models where it provides
a 60mm equivalent focal length.
- Impressively bright f/1.4 maximum aperture is well-suited for
working in low-light conditions and also provides greater control over the
focus position when using shallow depth of field techniques.
- Three F Low Dispersion (FLD) and three Special Low Dispersion
(SLD) elements are featured in the optical design, and help to reduce color
fringing and chromatic aberrations for improved clarity and color accuracy.
- One aspherical element is used to help limit distortion and
spherical aberrations and also contributes to greater overall sharpness and
accurate rendering.
- A 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 color-neutral imagery, even in backlit conditions.
- Rounded nine-blade diaphragm contributes to a smooth and
pleasing bokeh quality.
- 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.
- Specialized electromagnetic aperture mechanism provides
greater exposure control stability that is especially beneficial when working
with fast continuous shooting rates.
- The 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.
- Protective coating has been applied to the front element and
is both water and oil-repellent to aid in cleaning.
SIGMA 40MM F/1.4 DG HSM ART SPECS
Focal Length
|
40mm
|
Maximum Aperture
|
f/1.4
|
Minimum Aperture
|
f/16
|
Lens Mount
|
Sony E
|
Lens Format
Coverage
|
Full-Frame
|
Angle of View
|
56.8°
|
Minimum Focus
Distance
|
1.31' / 40 cm
|
Maximum
Magnification
|
0.15x
|
Optical Design
|
16 Elements in 12
Groups
|
Diaphragm Blades
|
9, Rounded
|
Focus Type
|
Autofocus
|
Image
Stabilization
|
No
|
Filter Size
|
82 mm (Front)
|
|
| |