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Sigma 20mm F1.4 DG DN Art Full-Frame Lens (2022)

Neo score 86%

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Photo 0of Sigma 20mm F1.4 DG DN Art Full-Frame Lens (2022)Photo 1of Sigma 20mm F1.4 DG DN Art Full-Frame Lens (2022)Photo 2of Sigma 20mm F1.4 DG DN Art Full-Frame Lens (2022)Photo 3of Sigma 20mm F1.4 DG DN Art Full-Frame Lens (2022)

Product Overview

Sigma 20mm F1.4 DG DN Art is a large-aperture ultra wide-angle prime lens for Leica L-mount and Sony E-mount. It covers the image circle. Introduced by Sigma in 2022, it has 17 elements in 15 groups.
For incremental weathers, Sigma is kind enough to include weather sealing. On the lens barrel, one can find a physical aperture ring. Those who wish to focus manually can have the best of both worlds (with the usual caveats).
The bright maximum aperture for an ultra wide-angle lens is appreciated for night and astro photography. Even though the lens is not stabilized, at this focal range it does not usually matter. In fact, some may be able to get cleaner corners without image stabilization.
Indeed, Sigma markets this lens specifically to photographers interested in astrophotography, though it is an interesting indoor alternative to the 14-24mm F2.8 DG DN Art.

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Ratings

What we found**

Neo score 86% (not directly comparable across industries)
Pros
  • Bright maximum aperture
  • Weather-sealed
  • Comes with physical aperture ring
  • Superb build quality
  • Great image quality
Cons

    Price Comparison (incl. referral links)*

    Specifications

    Construction

    Aperture Blades
    11 blades, Rounded
    Colors
    Black
    Form Factor
    Ultra Wide-Angle Prime Lens
    Lens Barrel
    Physical aperture ring
    Lens Mount
    Leica L-mount, Sony E-mount
    Material
    Aluminum, Thermally Stable Composite (TSC)
    Motor
    Stepper motor
    Optical Formula | Elements
    17 elements
    Optical Formula | Groups
    15 groups
    Optical Formula | Special Glass
    Two Super-Low Dispersion elements, three aspherical elements, Super Multi-Layer coating, and water- and oil-resistant coating. groups

    Dimensions

    Filter Diameter
    82 mm / 3.23 in
    Size | Diameter
    88 mm / 3.46 in
    Size | Length
    111 mm / 4.37 in
    Weight
    635 g / 22.44 oz

    Function

    Angle Of View
    94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
    Aperture
    f/1.4 ~ f/16
    Autofocus
    Yes
    Focal Length
    20 mm
    Focus Type
    Internal
    Weather Resistance
    Yes

    Performance

    Min Focus Distance
    230 mm / 9.06 in

    Production

    Accessory
    Lens Hood: LH898-04 (supplied)
    Debut
    2022-08-08

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