Compare Samyang 16mm F2 ED AS UMC CS vs Samyang 24mm F1.4 ED AS IF UMC vs Sony 20mm F1.8 G
Construction
Aperture Blades
8 blades
Colors
Black
Black
Form Factor
Wide-Angle Prime Lens
Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Image Size
APS-C
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring
Lens Mount
Canon EF-M-mount, Canon EF-mount, Micro Four Thirds-mount, Fujifilm X-mount, Micro Four Thirds-mount, Nikon F-mount, Pentax K-mount, Samsung NX-mount, Sony A-mount, Sony E-mount
Canon EF-mount, Nikon F-mount, Micro Four Thirds-mount, Pentax K-mount, Sony A-mount, Sony E-mount, Samsung NX-mount
Sony E-mount
Material
Metal barrel, metal mount
Motor
Linear Motor
Optical Formula | Elements
13 elements
13 elements
14 elements
Optical Formula | Groups
11 groups
12 groups
12 groups
Optical Formula | Special Glass
1 ED glass element, 1 aspheric element, 1 hybrid aspheric element groups
4 ED glass elements, 2 aspherical elements groups
2 aspherical + 3 ED elements, Nano AR coating groups
Dimensions
Filter Diameter
77 mm / 3.03 in
77 mm / 3.03 in
67 mm / 2.64 in
Size | Diameter
83 mm / 3.27 in
83 mm / 3.27 in
74 mm / 2.91 in
Size | Length
89 mm / 3.50 in
85 mm / 3.35 in
Weight
583 g / 20.60 oz
373 g / 13.18 oz
Function
Angle Of View
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
Aperture
f/2 ~ f/22
f/1.4 ~ f/22
f/1.8 ~ f/16
Autofocus
No
No
Yes
Crop Factor
1.5
Focal Length
16 mm
24 mm
20 mm
Focal Length (35mm Equivalent)
24.0 mm
Focus Type
Internal
Image Stabilization
No
No
Weather Resistance
No
Yes
Performance
Max Magnification
0.22x
Min Focus Distance
200 mm / 7.87 in
250 mm / 9.84 in
190 mm / 7.48 in
Production
Accessory
Lens hood included
Lens hood included
Debut
2013-06-13
2011-08-12
2020-02-25
Model Name
SEL20F18G
Reviews
Neofiliac score
50%
59%
88%
Pros
- A bit large for an APS-C lens
- Bright maximum aperture
- Affordable choice in its class
- Weather-sealed
- Declickable aperture ring
- Very sharp corner to corner
- Low distortion
Cons
- Not the best grade of build
- Not the strongest IQ
- Lacks weather sealing
- Not the best IQ
- Not the highest grade of construction
- Not the most solidly-built
- f/1.8 limiting for night photography
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