Compare Samyang 16mm F2 ED AS UMC CS vs Laowa 25mm f/2.8 2.5-5X Ultra Macro vs Canon RF 15-35mm F2.8
Construction
Aperture Blades
8 blades
8 blades
9 blades
Colors
Black
Black
Form Factor
Wide-Angle Prime Lens
Wide-Angle Prime Lens
Wide-Angle Zoom 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
Canon RF-mount
Material
Metal barrel, metal mount
Magnesium alloy
Motor
Nano ultrasonic
Optical Formula | Elements
13 elements
8 elements
16 elements
Optical Formula | Groups
11 groups
6 groups
12 groups
Optical Formula | Special Glass
1 ED glass element, 1 aspheric element, 1 hybrid aspheric element groups
1 low-dispersion element groups
3 aspherical + 2 UD elements groups
Dimensions
Filter Diameter
77 mm / 3.03 in
82 mm / 3.23 in
Size | Diameter
83 mm / 3.27 in
82 mm / 3.23 in
89 mm / 3.50 in
Size | Length
89 mm / 3.50 in
65 mm / 2.56 in
127 mm / 5.00 in
Weight
583 g / 20.60 oz
400 g / 14.13 oz
840 g / 29.68 oz
Function
Angle Of View
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical
81.8° Diagonal | 71.5° Horizontal | 51.3° Vertical
110.6° Diagonal | 100.4° Horizontal | 77.3° Vertical (wide) ~ 63.5° Diagonal | 54.4° Horizontal | 37.8° Vertical (tele)
Aperture
f/2 ~ f/22
f/2.8 ~ f/16
f/2.8
Autofocus
No
No
Yes
Crop Factor
1.5
Focal Length
16 mm
25 mm
15 mm ~ 35 mm
Focal Length (35mm Equivalent)
24.0 mm
Focus Type
Internal
Image Stabilization
No
No
Yes (5 stops)
Weather Resistance
No
Yes
Zoom Type
External zoom
Performance
Max Magnification
5x
0.21x
Min Focus Distance
200 mm / 7.87 in
170 mm / 6.69 in
280 mm / 11.02 in
Production
Accessory
Lens hood included
Lens hood sold separately
Lens hood included
Debut
2013-06-13
2018-03-07
2019-02-14
Made In
China
Reviews
Neofiliac score
50%
31%
71%
Pros
- A bit large for an APS-C lens
- Exceptional maximum magnification
- Optional LED ring light and tripod collar available
- 1mm wider than the EF-mount version
- Low distortion
- Unique image stabilization
- Weather-sealed
- Good sharpness
Cons
- Not the best grade of build
- Not the strongest IQ
- Not stabilized
- No lens hood available
- Lacks weather sealing
- On the heavy side
- External zoom without zoom lock
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