Sigma 20mm f/1.4 DG HSM Art Lens for Sigma
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Sigma 20mm f/1.4 DG HSM Art Lens for Sigma
The World’s First F1.4 Ultra-Wide-Angle Lens
Advanced Technologies Make This
20mm F1.4 Lens Possible
The SIGMA 20mm F1.4 DG HSM | Art lens for SIGMA SA incorporates a large double aspherical lens 59mm in diameter. Lenses of this type had been considered extremely difficult to manufacture, but SIGMA took on the challenge to realize an F1.4 ultra-wide-angle lens that fulfills the strict performance requirements of the SIGMA Art line.
Ideal High-Speed Lens With Top-level
Performance For The Ultra-High-Megapixel Era
The SIGMA 20mm F1.4 DG HSM | Art Lens for SIGMA SA provides the benefits of an ultra-wide angle lens with minimal distortion, it is ideal for photographing landscapes, starry skies, and architecture. In addition to capturing wide-angle shots with the whole scene in focus, the photographer can leverage wide-open aperture to take snapshots with the subject in focus and the background blurred with an attractive bokeh effect. Designed for ultra-high-megapixel SIGMA digital cameras, this high-performance lens delivers outstanding resolution and high-clarity image quality even at wide-open aperture.
Incredible Rendering Performance Delivers Unprecedented Visual Experiences.
Enjoy Enhanced Control Of Light And Composition.
SIGMA has extensive experience in leveraging its advanced design capabilities and leading-edge technologies to craft large-aperture prime lenses that bring out the full potential of ultra-high-megapixel SIGMA DSLRs. As its latest achievement in this category, SIGMA has created an ultra-wide-angle lens with F1.4 brightness. With a focal length of 20mm and F1.4 aperture, this lens delivers outstanding large-aperture brightness and bokeh, delivering unprecedented visual experiences. Allowing the photographer to leverage the perspective provided by the wide -angle and the shallow depth of field provided by the large aperture, this lens is ideal not only for such ultra-wide-angle subjects as landscapes and starry skies, but also for snapshots in low light, indoor photography, portraits with a natural bokeh effect, and much more.
High-Precision, Rugged Brass Bayonet Mount
The SIGMA 20mm F1.4 DG HSM | Art lens for SIGMA SA brass mount combines high precision with rugged construction. Its treated surfaces and enhanced strength contribute to the exceptional durability of the lens.
Rounded Diaphragm
The 9-blade rounded diaphragm creates an attractive blur in the out-of-focus areas of the image.
|
Lens construction |
15 elements in 11 groups |
|
Angle of view (35mm) |
94.5° |
|
Number of diaphragm blades |
9 (Rounded diaphragm) |
|
Minimum aperture |
F16 |
|
Minimum focusing distance |
27.6 cm / 10.9 in. |
|
Maximum magnification ratio |
1：7.1 |
|
Dimensions (diameter x length) |
φ90.7mm × 129.8mm / φ3.6in. × 5.1in. |
|
Weight |
950g / 33.5oz. |
|
Edition number* |
A015 |
|
Corresponding AF Mounts |
SIGMA SA mount |
* About Edition number
The three-digit code on the surface of the lens is to indicate the year the lens was first released.
(Since it is different from the year of manufacture, the release year and edition number may not match depending on the mount.)
Lens Construction
Lens Distortion
Diffraction MTF
Geometrical MTF
Vignetting
In the Box:
- Sigma 20mm f/1.4 DG HSM Art Lens for SIGMA SA
- LC907-01 Cover Lens Cap
- Sigma Rear Cap LCR II for SIGMA SA Mount Lenses
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