Compare Samyang 16mm F2 ED AS UMC CS vs Laowa 25mm f/2.8 2.5-5X Ultra Macro vs Nikon Z 20mm F1.8
Construction
Aperture Blades
8 blades
8 blades
9 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
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 RF-mount, Leica L-mount, Nikon F-mount, Nikon Z-mount, Pentax K-mount, Sony E-mount
Nikon Z-mount
Material
Metal barrel, metal mount
Magnesium alloy
Motor
Stepper motor
Optical Formula | Elements
13 elements
8 elements
14 elements
Optical Formula | Groups
11 groups
6 groups
11 groups
Optical Formula | Special Glass
1 ED glass element, 1 aspheric element, 1 hybrid aspheric element groups
1 low-dispersion element groups
ED and aspherical elements + Nano Crystal and Super Integrated coatings groups
Dimensions
Filter Diameter
77 mm / 3.03 in
77 mm / 3.03 in
Size | Diameter
83 mm / 3.27 in
82 mm / 3.23 in
85 mm / 3.35 in
Size | Length
89 mm / 3.50 in
65 mm / 2.56 in
109 mm / 4.29 in
Weight
583 g / 20.60 oz
400 g / 14.13 oz
505 g / 17.84 oz
Function
Angle Of View
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical
81.8° Diagonal | 71.5° Horizontal | 51.3° Vertical
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
Aperture
f/2 ~ f/22
f/2.8 ~ f/16
f/1.8 ~ f/16
Autofocus
No
No
Yes
Crop Factor
1.5
Focal Length
16 mm
25 mm
20 mm
Focal Length (35mm Equivalent)
24.0 mm
Focus Type
Internal
Image Stabilization
No
No
No
Weather Resistance
No
Yes
Performance
Max Magnification
5x
0.19x
Min Focus Distance
200 mm / 7.87 in
170 mm / 6.69 in
200 mm / 7.87 in
Production
Accessory
Lens hood included
Lens hood sold separately
Lens hood included
Debut
2013-06-13
2018-03-07
2020-02-12
Made In
China
Reviews
Neofiliac score
50%
31%
Pros
- A bit large for an APS-C lens
- Exceptional maximum magnification
- Optional LED ring light and tripod collar available
- Bright f/1.8 aperture
- Optical design
- Bright aperture
- Dust and splash protection
Cons
- Not the best grade of build
- Not the strongest IQ
- Not stabilized
- No lens hood available
- Lacks weather sealing
- As big as a zoom
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