Compare Sigma 40mm F1.4 DG HSM vs Sigma 14mm F1.8 DG HSM vs Nikon 20mm F1.8G
Construction
Aperture Blades
9 blades
9 blades
7 blades, Rounded blades
Colors
Black
Form Factor
Normal Prime Lens
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Image Size
Full-Frame
Full-Frame
Full-Frame
Lens Barrel
Distance scale
Distance scale
Distance scale
Lens Mount
Canon EF-mount, Nikon F-mount, Sigma SA-mount, Sony E-mount
Canon EF-mount, Nikon F-mount, Sigma SA-mount, Sony E-mount, Leica L-mount
Nikon F-mount
Material
Composite
Motor
Ring-type ultrasonic
Ring-type ultrasonic
Ultrasonic
Optical Formula | Elements
16 elements
16 elements
13 elements
Optical Formula | Groups
12 groups
11 groups
11 groups
Optical Formula | Special Glass
3 FLD + 3 SLD elements groups
Three FLD and four SLD elements groups
2 ED, 2 aspherical groups
Dimensions
Filter Diameter
82 mm / 3.23 in
77 mm / 3.03 in
Size | Diameter
88 mm / 3.46 in
95 mm / 3.74 in
83 mm / 3.27 in
Size | Length
131 mm / 5.16 in
126 mm / 4.96 in
81 mm / 3.19 in
Weight
1200 g / 42.40 oz
1170 g / 41.34 oz
355 g / 12.54 oz
Function
Angle Of View
56.8° Diagonal | 48.5° Horizontal | 33.4° Vertical
114.2° Diagonal | 104.3° Horizontal | 81.2° Vertical
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
Aperture
f/1.4 ~ f/16
f/1.8 ~ f/16
f/1.8 ~ f/16
Autofocus
Yes
Yes
Focal Length
40 mm
14 mm
20 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
Yes
No
Performance
Max Magnification
0.15x
0.1x
0.23x
Min Focus Distance
400 mm / 15.75 in
270 mm / 10.63 in
200 mm / 7.87 in
Production
Accessory
Lens hood included
Lens hood included
Lens Hood: HB-72 (supplied), CL-1015 soft lens case
Debut
2018-09-25
2017-02-21
2014-09-12
Made In
Japan
Japan
Reviews
Neofiliac score
74%
55%
78%
Pros
- Beautiful rendering
- Bright maximum aperture
- Weather-sealed
- Superb sharpness
- Excellent image quality
- Very well built
- Good sharpness
- Well corrected
Cons
- Quite large and heavy for a normal lens
- Notable comatic aberration
- Very large and heavy
- Lacks front filter thread
- Lacks weather sealing
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