Compare Laowa 20mm F4 Zero-D Shift vs Canon RF 50mm F1.8 vs 7Artisans 18mm F6.3
Construction
Aperture Blades
14 blades
7 blades
N/A
Colors
Black
Black
Form Factor
Ultra Wide-Angle Prime Lens
Normal Prime Lens
Fixed focus lens, Prime lens, Pancake lens
Image Size
Medium Format (44x33)
Full-Frame
APS-C
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
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
E-mount, X-mount, EF-M-mount, Micro Four Thirds
Motor
Stepper motor
Optical Formula | Elements
16 elements
6 elements
6 elements
Optical Formula | Groups
11 groups
5 groups
4 groups
Optical Formula | Special Glass
2 aspherical elements, 3 ED elements groups
1 aspherical element + Super Spectra Coating groups
Dimensions
Filter Diameter
82 mm / 3.23 in
43 mm / 1.69 in
N/A
Size | Diameter
95 mm / 3.74 in
69 mm / 2.72 in
Size | Length
91 mm / 3.58 in
41 mm / 1.61 in
Weight
747 g / 26.40 oz
160 g / 5.65 oz
49 g
Function
Angle Of View
107.8° Diagonal | 97.4° Horizontal | 74.4° Vertical
46.8° Diagonal | 39.6° Horizontal | 27.0° Vertical
74°
Aperture
f/4 ~ f/22
f/1.8 ~ f/22
F/6.3 fixed-aperture
Autofocus
No
Yes
Crop Factor
0.8
Focal Length
20 mm
50 mm
18 mm
Focal Length (35mm Equivalent)
15.8 mm
27 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
N/A
Weather Resistance
No
Performance
Max Magnification
0.17x
0.25x
1x
Min Focus Distance
250 mm / 9.84 in
300 mm / 11.81 in
Fixed focus
Production
Accessory
Lens hood included
Lens Hood: ES-65B (sold separately)
Debut
2022-03-28
2020-11-04
2020-11
Made In
China
Reviews
Neofiliac score
75%
71%
Pros
- Comes with physical aperture ring
- Shift functionality
- 14-bladed aperture
- Light, compact design
- Very affordable
- 1:4 macro magnification
- Can be used as a body cap
- Good contrast
- Good color rendition
Cons
- Large diameter
- Lens hood not included
- Lacks weather sealing
- Very slow autofocus
- Not suitable for distant subjects
- Vignetting in video
- Fixed aperture
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