Compare Laowa 20mm F4 Zero-D Shift vs Pentax 07 Mount Shield Lens
Construction
Aperture Blades
14 blades
Form Factor
Ultra Wide-Angle Prime Lens
Normal Prime Lens
Image Size
Medium Format (44x33)
1/1.7"
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
Pentax Q-mount
Optical Formula | Elements
16 elements
1 elements
Optical Formula | Groups
11 groups
1 groups
Optical Formula | Special Glass
2 aspherical elements, 3 ED elements groups
Dimensions
Filter Diameter
82 mm / 3.23 in
Size | Diameter
95 mm / 3.74 in
41 mm / 1.61 in
Size | Length
91 mm / 3.58 in
7 mm / 0.28 in
Weight
747 g / 26.40 oz
8 g / 0.28 oz
Function
Angle Of View
107.8° Diagonal | 97.4° Horizontal | 74.4° Vertical
44.5° Diagonal | 37.6° Horizontal | 25.6° Vertical
Aperture
f/4 ~ f/22
f/9
Autofocus
No
No
Crop Factor
0.8
4.6
Focal Length
20 mm
11.5 mm
Focal Length (35mm Equivalent)
15.8 mm
52.9 mm
Focus Type
Internal
Image Stabilization
No
No
Performance
Max Magnification
0.17x
Min Focus Distance
250 mm / 9.84 in
300 mm / 11.81 in
Production
Accessory
Lens hood included
Debut
2022-03-28
2013-06-12
Reviews
Neofiliac score
75%
40%
Pros
- Comes with physical aperture ring
- Shift functionality
- 14-bladed aperture
- Interesting "body cap" form factor
Cons
- Large diameter
- Limited f/9 aperture
- Image quality was not on the mind of its engineers
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