Compare Samyang 16mm F2 ED AS UMC CS vs Samyang 20mm F1.8 ED AS UMC vs Laowa 14mm f/4 Zero-D DSLR
Variants
EF-mount
F-mount
Construction
Aperture Blades
8 blades
7 blades
5 aperture blades (auto aperture)
Colors
Black
Form Factor
Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Manual focus 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
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, 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
Canon EF-mount, Nikon F-mount
Material
Metal barrel, metal mount
Optical Formula | Elements
13 elements
13 elements
13 elements
Optical Formula | Groups
11 groups
12 groups
8 groups
Optical Formula | Special Glass
1 ED glass element, 1 aspheric element, 1 hybrid aspheric element groups
Two aspherical + 3 ED elements, Ultra Multi Coating groups
2x ED, 2x aspherical groups
Dimensions
Filter Diameter
77 mm / 3.03 in
77 mm / 3.03 in
67 mm
Size | Diameter
83 mm / 3.27 in
83 mm / 3.27 in
72.5 mm
Size | Length
89 mm / 3.50 in
88 mm / 3.46 in
Weight
583 g / 20.60 oz
497 g / 17.56 oz
Function
Angle Of View
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
114°
Aperture
f/2 ~ f/22
f/1.8 ~ f/22
F/4 ~ f/22
Autofocus
No
No
Crop Factor
1.5
Focal Length
16 mm
20 mm
14 mm
Focal Length (35mm Equivalent)
24.0 mm
Focus Type
Internal
Image Stabilization
No
No
Weather Resistance
No
Performance
Max Magnification
0.3x
Min Focus Distance
200 mm / 7.87 in
200 mm / 7.87 in
14.5 cm
Production
Accessory
Lens hood included
Lens hood included
Debut
2013-06-13
2016-08-08
2021-07
Made In
China
Reviews
Neofiliac score
50%
59%
Pros
- A bit large for an APS-C lens
- Rather affordable
Cons
- Not the best grade of build
- Not the strongest IQ
- Lacks weather sealing
- Not the highest grade of build
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