Sigma 20mm f/1.4 DG HSM Art Lens for Sony E

Sigma 20mm f/1.4 DG HSM Art Lens for Sony E

Sigma 20mm f/1.4 DG HSM Art Lens for Sony E

B&H # SI2014SO MFR # 412965
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Product Highlights

  • E-Mount Lens/Full-Frame Format
  • Aperture Range: f/1.4 to f/16
  • Two FLD Elements and Five SLD Elements
  • Two Aspherical Elements
  • Super Multi-Layer Coating
  • Hyper Sonic AF Motor, Manual Override
  • Rounded 9-Blade Diaphragm
  • TSC Material, Brass Bayonet Mount
  • Built-In Petal-Shaped Lens Hood
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Sigma 20mm f/1.4 overview

  • 1Description

Truly wide and truly fast, the Sony E-mount 20mm f/1.4 DG HSM Lens is a member of the venerable Art series of Global Vision lenses from Sigma and pairs a sophisticated optical design with a robust physical construction. Comprised of 15 elements in 11 groups, the lens design includes two "F" Low Dispersion (FLD) elements, five Special Low Dispersion (SLD) elements, and two aspherical elements to significantly reduce chromatic and spherical aberrations, as well as limit distortion for clean, sharp, and evenly illuminated imagery. A Super Multi-Layer Coating has also been applied to minimize surface reflections, flare, and ghosting for increased contrast and color accuracy. The wide focal length and consistent image quality make this lens especially suitable for landscape, interior, architectural, and astrophotography applications, while the fast f/1.4 maximum aperture deems it ideal for natural and low-light shooting.

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 10.9". 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.

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.
Prime wide-angle 20mm f/1.4 lens is designed for full-frame Sony E-mount mirrorless cameras, and can also be used with DX models where it will provide a 30mm equivalent focal length.
Fast 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.
Two FLD, five SLD, and two aspherical elements have been incorporated within the lens design to correct for chromatic aberrations throughout the entire focusing range and help to ensure high image sharpness, clarity, and contrast regardless of focus point or aperture setting. This optical design also helps to control distortion and limit vignetting.
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.
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.
A rounded nine-blade diaphragm helps to produce an attractive out-of-focus quality.
Fixed petal-shaped lens hood helps to reduce lens flare when working in strong lighting conditions and also offers some protection to the front element of the lens.
The lens is constructed using a Thermally Stable Composite (TSC) material, along with traditional metals, for greater precision and use in wide temperature variations.
The bayonet mount is constructed from brass for ensured accuracy and durability.
UPC: 085126412654
In the Box
Sigma 20mm f/1.4 DG HSM Art Lens for Sony E
  • LC907-01 Cover Lens Cap
  • Rear Cap LCR II for Sony E Mount Lenses
  • Limited 1-Year North and South America Warranty
  • Limited 3-Year U.S.A. Warranty Extension
  • Table of Contents
    • 1Description

    Sigma 20mm f/1.4 specs

    Performance
    Focal Length 20mm
    Aperture Maximum: f/1.4
    Minimum: f/16
    Camera Mount Type Sony E
    Format Compatibility 35mm Film / Full-Frame Digital Sensor
    Angle of View 94.5°
    Minimum Focus Distance 10.9" / 27.69 cm
    Maximum Reproduction Ratio 1:7.1
    Optical Design 15 Elements in 11 Groups
    Diaphragm Blades 9, Rounded
    Features
    Autofocus Yes
    Physical
    Filter Thread None
    Dimensions (DxL) 3.57 x 5.11" / 90.7 x 129.8 mm
    Weight 2.09 lb / 950 g
    Packaging Infoestyccecsteqwtryfavrdttrsbfbatr
    Package Weight 3.5 lb
    Box Dimensions (LxWxH) 7.9 x 4.8 x 4.7"

    Sigma 20mm f/1.4 reviews

    20mm f/1.4 DG HSM Art Lens for Sony E is rated 3.0 out of 5 by 2.
    Rated 3 out of 5 by from Falls flat in AF-C video autofocus Beautiful. Well constructed. Heavy. Really slow to autofocus in video mode. Using the Sony A6500. Unusable without all settings set to fastest focus and responsiveness. Even at those settings, this lens takes 4x longer when actively focusing than all my native sony lenses. Worst yet is that it often simply doesn't adjust focus at all, for example when panning over to a very nearby object, or having a subject walk into frame. Spot focus / touchscreen focus can ameliorate this somewhat. Unfortunately there are no reasonably priced fast sony lenses in this genre, so this will make due for now. It is NOT even close to as effective in video AF-C focusing as native sony glass, though.
    Date published: 2018-07-13
    Rated 3 out of 5 by from Slow to Autofocus I typically use GM series lenses for my A7sii. At the time of my purchase, nothing was available for the native e mount. The Sigma 20 is very slow to autofocus in video mode. It's almost unusable because you end up missing a ton of shots...and focusing makes the shot look amateurish. Now GM has released a 24 but unfortunately this sigma was the only wide lens available at the time. If you are shooting pics, its fantastic. But unusable for video unless you are doing some time lapse
    Date published: 2018-10-01
    • y_2018, m_11, d_15, h_17
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    Customer Photos

    Sigma 20mm f/1.4 Q&A

    Sigma 20mm f/1.4 accessories

    Designed for use with:

    • Sony NEX-EA50M
    • Sony PXW-FS5
    • Sony PXW-FS7
    • Sony PXW-FS7M2
    • Sony Alpha A5000
    • Sony Alpha A5100
    • Sony Alpha A6000
    • Sony Alpha A6300
    • Sony Alpha A6500
    • Sony Alpha A7
    • Sony Alpha A7 II
    • Sony Alpha A7 III
    • Sony Alpha A7R
    • Sony Alpha A7R II
    • Sony Alpha A7R III
    • Sony Alpha A7S
    • Sony Alpha A7S II
    • Sony Alpha A9
    • Sony Alpha a7
    • Sony Alpha A6500
    • Sony Alpha A7S II
    • Sony A7R III
    • Sony NEX-EA50M
    • Sony NEX-EA50UH
    • Sony NEX-FS700R
    • Sony NEX-VG30
    • Sony NEX-VG900
    • Sony PXW-FS5
    • Sony PXW-FS5M2
    • Sony PXW-FS7
    • Sony PXW-FS7M2
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