Compare Sigma 20mm F1.4 DG HSM vs Sigma 28mm F1.4 DG HSM vs Panasonic S 18mm F1.8
Construction
Aperture Blades
9 blades, Rounded blades
9 blades
9 blades, Circulate aperture desigm
Colors
Black
Form Factor
Ultra Wide-Angle Prime Lens
Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Image Size
Full-Frame
Full-Frame
Full-Frame
Lens Barrel
Distance scale
Distance scale
Lens Mount
Canon EF-mount, Nikon F-mount, Sigma SA-mount, Sony E-mount, Leica L-mount
Canon EF-mount, Nikon F-mount, Sigma SA-mount, Sony E-mount, Leica L-mount
Leica L-mount
Material
Polycarbonate
Motor
Ring-type ultrasonic
Ring-type ultrasonic
Stepper motor
Optical Formula | Elements
15 elements
17 elements
13 elements
Optical Formula | Groups
11 groups
12 groups
12 groups
Optical Formula | Special Glass
Two FLD, five SLD elements + Super Multi-Layer coating groups
Three SLD + two FLD elements groups
3 Aspheric, 1 UED, 3 ED, 1 UHR groups
Dimensions
Filter Diameter
77 mm / 3.03 in
67 mm / 2.64 in
Size | Diameter
91 mm / 3.58 in
83 mm / 3.27 in
74 mm / 2.91 in
Size | Length
130 mm / 5.12 in
108 mm / 4.25 in
82 mm / 3.23 in
Weight
950 g / 33.57 oz
865 g / 30.57 oz
340 g / 12.01 oz
Function
Angle Of View
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
75.4° Diagonal | 65.5° Horizontal | 46.4° Vertical
100.5° Diagonal | 90.0° Horizontal | 67.4° Vertical
Aperture
f/1.4 ~ f/16
f/1.4 ~ f/16
f/1.8 ~ f/16
Autofocus
Yes
Yes
Yes
Focal Length
20 mm
28 mm
18 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
Yes
Performance
Max Magnification
0.14x
0.19x
0.2x
Min Focus Distance
300 mm / 11.81 in
280 mm / 11.02 in
180 mm / 7.09 in
Production
Accessory
Lens hood included
Lens hood included
Lens hood included
Debut
2015-10-16
2018-09-25
2022-09-07
Made In
Japan
Japan
Reviews
Neofiliac score
55%
83%
68%
Pros
- High level of resolution
- Bright maximum aperture
- Good optical performance
- Bright maximum aperture
- Weather-sealed
- Rather lightweight
- Decent image quality
Cons
- Large and heavy
- Lacks front filter thread
- Lacks weather sealing
- On the heavy side
- Released rather late in the DSLR Art line (DG HSM)
- Not very competitive
Remove
Remove
Remove
Add up to 4 products to the comparison using the search bar above
Information on this page is provided on an as-is basis. No warranty on accuracy is implied. This page may contain affiliate links to third-party merchants such as Amazon and eBay. If you make a purchase using the supplied link, we may receive a commission. Neofiliac places the utmost respect for your privacy. We use no cookie whatsoever beyond that needed for the proper functioning of the website.