Compare Laowa 10-18mm f/4.5-5.6 vs Laowa 20mm F4 Zero-D Shift vs Pentax-FA 31mm F1.8
Construction
Aperture Blades
7 blades
14 blades
9 blades
Colors
Black, silver
Form Factor
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Wide-Angle Prime Lens
Image Size
Full-Frame
Medium Format (44x33)
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring, Distance scale, DoF scale
Lens Mount
Leica L-mount, Nikon Z-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
Pentax K-mount
Material
Aluminum
Motor
Screw drive from camera
Optical Formula | Elements
14 elements
16 elements
9 elements
Optical Formula | Groups
10 groups
11 groups
7 groups
Optical Formula | Special Glass
1 ED and 2 aspherical elements groups
2 aspherical elements, 3 ED elements groups
HD + Super Protect coatings groups
Dimensions
Filter Diameter
37 mm / 1.46 in
82 mm / 3.23 in
58 mm / 2.28 in
Size | Diameter
70 mm / 2.76 in
95 mm / 3.74 in
65 mm / 2.56 in
Size | Length
91 mm / 3.58 in
91 mm / 3.58 in
69 mm / 2.72 in
Weight
496 g / 17.53 oz
747 g / 26.40 oz
341 g / 12.05 oz
Function
Angle Of View
130.4° Diagonal | 121.9° Horizontal | 100.4° Vertical (wide) ~ 100.5° Diagonal | 90.0° Horizontal | 67.4° Vertical (tele)
107.8° Diagonal | 97.4° Horizontal | 74.4° Vertical
69.9° Diagonal | 60.3° Horizontal | 42.3° Vertical
Aperture
f/4.5–5.6 ~ f/22
f/4 ~ f/22
f/1.8 ~ f/22
Autofocus
No
No
Yes
Crop Factor
0.8
Focal Length
10 mm ~ 18 mm
20 mm
31 mm
Focal Length (35mm Equivalent)
15.8 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
No
Performance
Max Magnification
0.25x
0.17x
0.16x
Min Focus Distance
150 mm / 5.91 in
250 mm / 9.84 in
300 mm / 11.81 in
Production
Accessory
Lens hood included
Lens hood included
Debut
2018-04-20
2022-03-28
2021-02-24
Made In
China
Reviews
Neofiliac score
40%
75%
50%
Pros
- Widest rectilinear zoom lens for FF
- Good build quality
- Comes with physical aperture ring
- Shift functionality
- 14-bladed aperture
- Comes with physical aperture ring
- Beautifully built
Cons
- Dark maximum aperture
- Lacks weather sealing
- No front filter
- Optically weak
- Large diameter
- Only f/1.8 for the price
- Lacks weather sealing
- Unusual focal length
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