Compare Laowa 20mm F4 Zero-D Shift vs Laowa 25mm f/2.8 2.5-5X Ultra Macro vs Pentax-D FA* 50mm F1.4
Construction
Aperture Blades
14 blades
8 blades
9 blades
Colors
Black
Black
Form Factor
Ultra Wide-Angle Prime Lens
Wide-Angle Prime Lens
Normal Prime Lens
Image Size
Medium Format (44x33)
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring
Distance 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 EF-mount, Canon RF-mount, Leica L-mount, Nikon F-mount, Nikon Z-mount, Pentax K-mount, Sony E-mount
Pentax K-mount
Motor
Ring-type ultrasonic
Optical Formula | Elements
16 elements
8 elements
15 elements
Optical Formula | Groups
11 groups
6 groups
9 groups
Optical Formula | Special Glass
2 aspherical elements, 3 ED elements groups
1 low-dispersion element groups
1 aspherical + 3 anamalous dispersion elements, Aero Bright II + HD + Super Protect coatings groups
Dimensions
Filter Diameter
82 mm / 3.23 in
72 mm / 2.83 in
Size | Diameter
95 mm / 3.74 in
82 mm / 3.23 in
80 mm / 3.15 in
Size | Length
91 mm / 3.58 in
65 mm / 2.56 in
106 mm / 4.17 in
Weight
747 g / 26.40 oz
400 g / 14.13 oz
910 g / 32.16 oz
Function
Angle Of View
107.8° Diagonal | 97.4° Horizontal | 74.4° Vertical
81.8° Diagonal | 71.5° Horizontal | 51.3° Vertical
46.8° Diagonal | 39.6° Horizontal | 27.0° Vertical
Aperture
f/4 ~ f/22
f/2.8 ~ f/16
f/1.4 ~ f/16
Autofocus
No
No
Yes
Crop Factor
0.8
Focal Length
20 mm
25 mm
50 mm
Focal Length (35mm Equivalent)
15.8 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
Yes
Performance
Max Magnification
0.17x
5x
0.18x
Min Focus Distance
250 mm / 9.84 in
170 mm / 6.69 in
400 mm / 15.75 in
Production
Accessory
Lens hood included
Lens hood sold separately
Lens hood included
Debut
2022-03-28
2018-03-07
2017-10-26
Made In
China
Reviews
Neofiliac score
75%
31%
68%
Pros
- Comes with physical aperture ring
- Shift functionality
- 14-bladed aperture
- Exceptional maximum magnification
- Optional LED ring light and tripod collar available
- Bright maximum aperture
- Weather-sealed
- Very sharp
Cons
- Large diameter
- Not stabilized
- No lens hood available
- Lacks weather sealing
- On the heavy side
- Slow autofocus
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