Compare Laowa 20mm F4 Zero-D Shift vs Canon RF 70-200mm F2.8 vs Canon RF 15-35mm F2.8
Construction
Aperture Blades
14 blades
9 blades
9 blades
Colors
Black
Form Factor
Ultra Wide-Angle Prime Lens
Telephoto Zoom Lens
Wide-Angle Zoom Lens
Image Size
Medium Format (44x33)
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Focus limiter, Tripod collar
Lens 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
Canon RF-mount
Canon RF-mount
Material
Magnesium alloy
Motor
Ultrasonic
Nano ultrasonic
Optical Formula | Elements
16 elements
17 elements
16 elements
Optical Formula | Groups
11 groups
13 groups
12 groups
Optical Formula | Special Glass
2 aspherical elements, 3 ED elements groups
Two glass-molded aspherical, one super UD, four UD (One of which is UD Aspherical) groups
3 aspherical + 2 UD elements groups
Dimensions
Filter Diameter
82 mm / 3.23 in
77 mm / 3.03 in
82 mm / 3.23 in
Size | Diameter
95 mm / 3.74 in
90 mm / 3.54 in
89 mm / 3.50 in
Size | Length
91 mm / 3.58 in
146 mm / 5.75 in
127 mm / 5.00 in
Weight
747 g / 26.40 oz
1070 g / 37.81 oz
840 g / 29.68 oz
Function
Angle Of View
107.8° Diagonal | 97.4° Horizontal | 74.4° Vertical
34.4° Diagonal | 28.8° Horizontal | 19.5° Vertical (wide) ~ 12.4° Diagonal | 10.3° Horizontal | 6.9° Vertical (tele)
110.6° Diagonal | 100.4° Horizontal | 77.3° Vertical (wide) ~ 63.5° Diagonal | 54.4° Horizontal | 37.8° Vertical (tele)
Aperture
f/4 ~ f/22
f/2.8
f/2.8
Autofocus
No
Yes
Yes
Crop Factor
0.8
Focal Length
20 mm
70 mm ~ 200 mm
15 mm ~ 35 mm
Focal Length (35mm Equivalent)
15.8 mm
Focus Type
Internal
Internal
Image Stabilization
No
Yes (5 stops)
Yes (5 stops)
Weather Resistance
Yes
Yes
Zoom Type
External zoom (zoom lock available)
External zoom
Performance
Max Magnification
0.17x
0.23x
0.21x
Min Focus Distance
250 mm / 9.84 in
700 mm / 27.56 in
280 mm / 11.02 in
Production
Accessory
Lens hood included
Lens hood included
Lens hood included
Debut
2022-03-28
2019-02-14
2019-02-14
Reviews
Neofiliac score
75%
71%
71%
Pros
- Comes with physical aperture ring
- Shift functionality
- 14-bladed aperture
- Excellent optical performance
- Smaller than the competition
- Optically stabilized
- Zoom lock prevents zoom creep
- Weather-sealed
- Comes with a tripod collar
- 1mm wider than the EF-mount version
- Low distortion
- Unique image stabilization
- Weather-sealed
- Good sharpness
Cons
- Large diameter
- Not the best zooming mechanism
- On the heavy side
- External zoom without zoom lock
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