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Sigma 20mm f/1.4 (FF)

  • Sigma 20mm f/1.4 (FF)
  • Sigma 20mm f/1.4 (FF) Click to zoom
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Sigma 14mm f/1.8 (FF)
Sigma 20mm f/1.4 (FF)
Sigma 24mm f/1.4 (FF)
Sigma 35mm f/1.4 (FF)
Sigma 50mm f/1.4 (FF)
Sigma 85mm f/1.4 (FF)
Sigma 135mm f/1.8 (FF)
Sigma 18-35mm f/1.8 (S35)
Sigma 24-70mm f/2.8 (FF)
Sigma 50-100mm f/1.8 (S35)
Close Focus 0.27 m / 0.9' 0.28 m / 0.9' 0.25 m / 1' 0.30 m / 1' 0.40 m / 1.3' 0.85 m / 2.8' 0.9 m / 3' 0.28 m / 0.9' 0.37 m / 1.2' 0.95 m / 3.1'
Front Diameter - - 85 mm 77 mm 85.4 mm 94.7 mm 91.4 mm 78 mm - 93.5 mm
Filter diameter - - 77 mm 67 mm 77 mm 86 mm 82 mm 72 mm 82 mm 82 mm
Aperture F1.8 - F16 F1.4 - F16 F1.4 - F16 F1.4 - F16 F1.4 - F16 F1.4 - F16 F1.8 - F16 F1.8 - F16 F2.8 - F22 F1.8 - F16
Length 126 mm / 5" 130 mm / 5.1" 90 mm / 3.5" 94 mm / 3.7" 100 mm / 4" 126 mm / 5" 114 mm / 4.5" 121 mm / 4.7" 107 mm / 4.2" 170 mm / 6.7"
Weight 1.2 kg / 2.6 lb 0.9 kg / 2 lb 0.7 kg / 1.5 lb 0.7 kg / 1.5 lb 0.8 kg / 1.8 lb 1.1 kg / 2.5 lb 1.1 kg / 2.5 lb 0.8 kg / 1.8 lb 1 kg / 2.2 lb 1.5 kg / 3.3 lb
Zoom ratio 1:9.8 - 1 : 5.3 1 : 5.2 1 : 5.6 1:8.5 1:5 1 : 4.3 1 : 4.3 1 : 6.7
Close Focus
Front Diameter
Filter diameter
Aperture
Length
Weight
Zoom ratio
0.27 m / 0.9'
-
-
F1.8 - F16
126 mm / 5"
1.2 kg / 2.6 lb
1:9.8
0.28 m / 0.9'
-
-
F1.4 - F16
130 mm / 5.1"
0.9 kg / 2 lb
-
0.25 m / 1'
85 mm
77 mm
F1.4 - F16
90 mm / 3.5"
0.7 kg / 1.5 lb
1 : 5.3
0.30 m / 1'
77 mm
67 mm
F1.4 - F16
94 mm / 3.7"
0.7 kg / 1.5 lb
1 : 5.2
0.40 m / 1.3'
85.4 mm
77 mm
F1.4 - F16
100 mm / 4"
0.8 kg / 1.8 lb
1 : 5.6
0.85 m / 2.8'
94.7 mm
86 mm
F1.4 - F16
126 mm / 5"
1.1 kg / 2.5 lb
1:8.5
0.9 m / 3'
91.4 mm
82 mm
F1.8 - F16
114 mm / 4.5"
1.1 kg / 2.5 lb
1:5
0.28 m / 0.9'
78 mm
72 mm
F1.8 - F16
121 mm / 4.7"
0.8 kg / 1.8 lb
1 : 4.3
0.37 m / 1.2'
-
82 mm
F2.8 - F22
107 mm / 4.2"
1 kg / 2.2 lb
1 : 4.3
0.95 m / 3.1'
93.5 mm
82 mm
F1.8 - F16
170 mm / 6.7"
1.5 kg / 3.3 lb
1 : 6.7

To offer an ultra-wide-angle 20mm focal length and F1.4 brightness at wide-open aperture, this lens 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. What made this breakthrough possible were SIGMA’s advanced manufacturing technologies, which the company has developed over time by producing a wide range of ultra-wide-angle and large-aperture lenses.

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.


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