Compare Sigma 20mm F1.4 DG HSM vs Sony 24mm F1.4 GM
Construction
Aperture Blades
9 blades, Rounded blades
11 blades
Colors
Black
Black
Form Factor
Ultra Wide-Angle Prime Lens
Wide-Angle Prime Lens
Image Size
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
Motor
Ring-type ultrasonic
Linear Motor
Optical Formula | Elements
15 elements
13 elements
Optical Formula | Groups
11 groups
10 groups
Optical Formula | Special Glass
Two FLD, five SLD elements + Super Multi-Layer coating 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
75 mm / 2.95 in
Size | Length
130 mm / 5.12 in
92 mm / 3.62 in
Weight
950 g / 33.57 oz
445 g / 15.72 oz
Function
Angle Of View
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical
Aperture
f/1.4 ~ f/16
f/1.4 ~ f/16
Autofocus
Yes
Yes
Focal Length
20 mm
24 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
Weather Resistance
No
Yes
Performance
Max Magnification
0.14x
0.17x
Min Focus Distance
300 mm / 11.81 in
240 mm / 9.45 in
Production
Accessory
Lens hood included
Lens Hood: ALC-SH154 (supplied)
Debut
2015-10-16
2018-09-20
Made In
Japan
Model Name
SEL24F14GM
Reviews
Neofiliac score
55%
88%
Pros
- High level of resolution
- Bright maximum aperture
- 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
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