Compare Sigma 20mm F1.4 DG HSM vs Sony 12-24mm F2.8 GM vs Sony 24mm F1.4 GM
Construction
Aperture Blades
9 blades, Rounded blades
9 blades
11 blades
Colors
Black
Black
Form Factor
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Zoom Lens
Wide-Angle Prime Lens
Image Size
Full-Frame
Full-Frame
Full-Frame
Lens Barrel
Distance scale
Physical aperture ring
Lens Mount
Canon EF-mount, Nikon F-mount, Sigma SA-mount, Sony E-mount, Leica L-mount
Sony E-mount
Sony E-mount
Motor
Ring-type ultrasonic
Linear Motor
Optical Formula | Elements
15 elements
17 elements
13 elements
Optical Formula | Groups
11 groups
14 groups
10 groups
Optical Formula | Special Glass
Two FLD, five SLD elements + Super Multi-Layer coating groups
Nano AR II groups
XA (extreme aspherical) + ED elements, Nano AR coating groups
Dimensions
Filter Diameter
67 mm / 2.64 in
Size | Diameter
91 mm / 3.58 in
98 mm / 3.86 in
75 mm / 2.95 in
Size | Length
130 mm / 5.12 in
137 mm / 5.39 in
92 mm / 3.62 in
Weight
950 g / 33.57 oz
847 g / 29.93 oz
445 g / 15.72 oz
Function
Angle Of View
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
122.0° Diagonal | 112.6° Horizontal | 90.0° Vertical (wide) ~ 84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical (tele)
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical
Aperture
f/1.4 ~ f/16
f/2.8
f/1.4 ~ f/16
Autofocus
Yes
Yes
Yes
Focal Length
20 mm
12 mm ~ 24 mm
24 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
Yes
Yes
Performance
Max Magnification
0.14x
0.14x
0.17x
Min Focus Distance
300 mm / 11.81 in
240 mm / 9.45 in
Production
Accessory
Lens hood included
Lens hood included
Lens Hood: ALC-SH154 (supplied)
Debut
2015-10-16
2020-07-07
2018-09-20
Made In
Japan
Model Name
SEL1224GM
SEL24F14GM
Reviews
Neofiliac score
55%
43%
88%
Pros
- High level of resolution
- Bright maximum aperture
- Weather-sealed
- Exceptional sharpness
- Great flare-resistance
- Low distortion
- Fast autofocus
- Sharpness across the frame
- Bright maximum aperture
- Weather-sealed
- Declickable aperture ring
- Great price point
Cons
- Large and heavy
- Lacks front filter thread
- Lacks weather sealing
- Large and heavy
- Lacks front filter thread
- High sample variation
- Sigma's 14-24 F2.8 is just as sharp
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