Sigma 20mm F1.4 DG HSM | Art Full-Frame Lens (2015)
Keywords: autofocusdslre-mountef-mountf-mountfull-framehigh-endl-mountlensmirrorlessprime-lenssa-mountsigmasigma-artultra-widewide-angle
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Product Overview
Sigma 20mm F1.4 DG HSM | Art is a large-aperture ultra wide-angle prime lens for Canon EF-mount, Nikon F-mount, Sigma SA-mount, Sony E-mount, and Leica L-mount. It covers the full-frame image circle. Introduced by Sigma in 2015, it has 15 elements in 11 groups.
Unfortunately, Sigma has opted to omit weather sealing for this lens, so owners should pay extra attention when shooting in incremental weathers.
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.
Some photographers may be disappointed by the fact that the lens does not accept front screw-on filters.
Ratings
What we found**
Neofiliac score 55% (not directly comparable across industries)
Pros
- High level of resolution
- Bright maximum aperture
Cons
- Large and heavy
- Lacks front filter thread
- Lacks weather sealing
Price Comparison
Specifications
Construction
Aperture Blades
9 blades, Rounded blades
Colors
Black
Form Factor
Ultra Wide-Angle Prime Lens
Image Size
Full-Frame
Lens Barrel
Distance scale
Lens Mount
Canon EF-mount, Nikon F-mount, Sigma SA-mount, Sony E-mount, Leica L-mount
Motor
Ring-type ultrasonic
Optical Formula | Elements
15 elements
Optical Formula | Groups
11 groups
Optical Formula | Special Glass
Two FLD, five SLD elements + Super Multi-Layer coating groups
Dimensions
Size | Diameter
91 mm / 3.58 in
Size | Length
130 mm / 5.12 in
Weight
950 g / 33.57 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
Image Stabilization
No
Weather Resistance
No
Performance
Max Magnification
0.14x
Min Focus Distance
300 mm / 11.81 in
Production
Accessory
Lens hood included
Debut
2015-10-16
Made In
Japan
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