Compare Samyang 20mm F1.8 ED AS UMC vs Laowa 25mm f/2.8 2.5-5X Ultra Macro vs Panasonic S Pro 70-200mm F4
Construction
Aperture Blades
7 blades
8 blades
9 blades
Colors
Black
Black
Form Factor
Ultra Wide-Angle Prime Lens
Wide-Angle Prime Lens
Telephoto Zoom Lens
Image Size
Full-Frame
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale
Physical aperture ring
Physical aperture ring, Tripod collar, Distance scale
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, Leica L-mount, Nikon F-mount, Nikon Z-mount, Pentax K-mount, Sony E-mount
Leica L-mount
Material
Magnesium alloy
Motor
Linear Motor
Optical Formula | Elements
13 elements
8 elements
23 elements
Optical Formula | Groups
12 groups
6 groups
17 groups
Optical Formula | Special Glass
Two aspherical + 3 ED elements, Ultra Multi Coating groups
1 low-dispersion element groups
1 aspherical + 1 UED + 3 ED + 1 UHR elements, fluorine coating 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
84 mm / 3.31 in
Size | Length
88 mm / 3.46 in
65 mm / 2.56 in
179 mm / 7.05 in
Weight
497 g / 17.56 oz
400 g / 14.13 oz
985 g / 34.81 oz
Function
Angle Of View
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
81.8° Diagonal | 71.5° Horizontal | 51.3° Vertical
34.4° Diagonal | 28.8° Horizontal | 19.5° Vertical (wide) ~ 12.4° Diagonal | 10.3° Horizontal | 6.9° Vertical (tele)
Aperture
f/1.8 ~ f/22
f/2.8 ~ f/16
f/4 ~ f/22
Autofocus
No
No
Yes
Focal Length
20 mm
25 mm
70 mm ~ 200 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
Yes (6 stops)
Weather Resistance
No
No
Yes
Zoom Type
Internal zoom
Performance
Max Magnification
5x
0.25x
Min Focus Distance
200 mm / 7.87 in
170 mm / 6.69 in
920 mm / 36.22 in
Production
Accessory
Lens hood included
Lens hood sold separately
Lens hood included
Debut
2016-08-08
2018-03-07
2019-02-01
Made In
China
Model Name
S-R70200
Reviews
Neofiliac score
59%
31%
69%
Pros
- Rather affordable
- Exceptional maximum magnification
- Optional LED ring light and tripod collar available
- Good sharpness
- Optically stabilized
- Internal zoom
- Weather-sealed
- Comes with physical aperture ring
- Comes with a tripod collar
Cons
- Lacks weather sealing
- Not the highest grade of build
- Not stabilized
- No lens hood available
- Lacks weather sealing
- Dark maximum aperture
- Slow autofocus
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