Compare Samyang 20mm F1.8 ED AS UMC vs Laowa 20mm F4 Zero-D Shift vs Fujifilm GF 100-200mm F5.6
Construction
Aperture Blades
7 blades
14 blades
9 blades
Colors
Black
Form Factor
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Telephoto Zoom Lens
Image Size
Full-Frame
Medium Format (44x33)
Medium Format (44x33)
Lens Barrel
Physical aperture ring, Distance scale
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring, Focus limiter, Tripod collar
Lens 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, Canon RF-mount, Fujifilm G-mount, Leica L-mount, Nikon F-mount, Nikon Z-mount, Pentax K-mount, Sony E-mount
Fujifilm G-mount
Material
Magnesium alloy
Motor
Linear Motor
Optical Formula | Elements
13 elements
16 elements
20 elements
Optical Formula | Groups
12 groups
11 groups
13 groups
Optical Formula | Special Glass
Two aspherical + 3 ED elements, Ultra Multi Coating groups
2 aspherical elements, 3 ED elements groups
1 aspherical + 2 super ED elements groups
Dimensions
Filter Diameter
77 mm / 3.03 in
82 mm / 3.23 in
67 mm / 2.64 in
Size | Diameter
83 mm / 3.27 in
95 mm / 3.74 in
90 mm / 3.54 in
Size | Length
88 mm / 3.46 in
91 mm / 3.58 in
183 mm / 7.20 in
Weight
497 g / 17.56 oz
747 g / 26.40 oz
1050 g / 37.10 oz
Function
Angle Of View
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
107.8° Diagonal | 97.4° Horizontal | 74.4° Vertical
30.7° Diagonal | 25.7° Horizontal | 17.3° Vertical (wide) ~ 15.6° Diagonal | 13.0° Horizontal | 8.7° Vertical (tele)
Aperture
f/1.8 ~ f/22
f/4 ~ f/22
f/5.6 ~ f/32
Autofocus
No
No
Yes
Crop Factor
0.8
0.8
Focal Length
20 mm
20 mm
100 mm ~ 200 mm
Focal Length (35mm Equivalent)
15.8 mm
79.0 mm ~ 158.0 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
Yes (5 stops)
Weather Resistance
No
Yes
Zoom Type
External zoom
Performance
Max Magnification
0.17x
0.2x
Min Focus Distance
200 mm / 7.87 in
250 mm / 9.84 in
600 mm / 23.62 in
Production
Accessory
Lens hood included
Lens hood included
Lens hood included
Debut
2016-08-08
2022-03-28
2019-01-17
Reviews
Neofiliac score
59%
75%
71%
Pros
- Rather affordable
- Comes with physical aperture ring
- Shift functionality
- 14-bladed aperture
- Optically stabilized
- Weather-sealed
- Comes with physical aperture ring
- Comes with a tripod collar
Cons
- Lacks weather sealing
- Not the highest grade of build
- Large diameter
- External zoom without zoom lock
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