Compare Samyang 21mm F1.4 ED AS UMC CS vs Samyang 20mm F1.8 ED AS UMC vs Sony 24mm F1.4 GM
Construction
Aperture Blades
9 blades, Circular blades
7 blades
11 blades
Colors
Black
Black
Form Factor
Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Wide-Angle Prime Lens
Image Size
APS-C
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring, Distance scale
Physical aperture ring
Lens Mount
Canon EF-M-mount, Fujifilm X-mount, Micro Four Thirds-mount, Sony E-mount
Canon EF-mount, Canon EF-M-mount, Fujifilm X-mount, Micro Four Thirds-mount, Nikon F-mount, Pentax K-mount, Samsung NX-mount, Sony A-mount, Sony E-mount
Sony E-mount
Motor
Linear Motor
Optical Formula | Elements
8 elements
13 elements
13 elements
Optical Formula | Groups
7 groups
12 groups
10 groups
Optical Formula | Special Glass
3 aspherical and 2 ED elements + Ultra Multi Coating groups
Two aspherical + 3 ED elements, Ultra Multi Coating groups
XA (extreme aspherical) + ED elements, Nano AR coating groups
Dimensions
Filter Diameter
58 mm / 2.28 in
77 mm / 3.03 in
67 mm / 2.64 in
Size | Diameter
64 mm / 2.52 in
83 mm / 3.27 in
75 mm / 2.95 in
Size | Length
68 mm / 2.68 in
88 mm / 3.46 in
92 mm / 3.62 in
Weight
275 g / 9.72 oz
497 g / 17.56 oz
445 g / 15.72 oz
Function
Angle Of View
69.0° Diagonal | 59.5° Horizontal | 41.7° Vertical
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical
Aperture
f/1.4 ~ f/22
f/1.8 ~ f/22
f/1.4 ~ f/16
Autofocus
No
No
Yes
Crop Factor
1.5
Focal Length
21 mm
20 mm
24 mm
Focal Length (35mm Equivalent)
31.5 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
No
Yes
Performance
Max Magnification
0.17x
Min Focus Distance
280 mm / 11.02 in
200 mm / 7.87 in
240 mm / 9.45 in
Production
Accessory
Lens hood included
Lens hood included
Lens Hood: ALC-SH154 (supplied)
Debut
2015-09-21
2016-08-08
2018-09-20
Model Name
SEL24F14GM
Reviews
Neofiliac score
50%
59%
88%
Pros
- Bright maximum aperture
- Very sharp
- Good color rendition
- Rather affordable
- Sharpness across the frame
- Bright maximum aperture
- Weather-sealed
- Declickable aperture ring
- Great price point
Cons
- Lacks weather sealing
- Lacks weather sealing
- Not the highest grade of build
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