Compare Pentax 03 Fish-Eye vs Laowa 20mm F4 Zero-D Shift vs Pentax 03 Fish-Eye
Construction
Aperture Blades
14 blades
Form Factor
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Image Size
1/1.7"
Medium Format (44x33)
1/1.7"
Lens Barrel
Distance scale
Physical aperture ring, Distance scale, DoF scale
Distance scale
Lens Mount
Pentax Q-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
Material
Plastic mount
Plastic mount
Optical Formula | Elements
6 elements
16 elements
6 elements
Optical Formula | Groups
5 groups
11 groups
5 groups
Optical Formula | Special Glass
2 aspherical elements, 3 ED elements groups
Dimensions
Filter Diameter
82 mm / 3.23 in
Size | Diameter
41 mm / 1.61 in
95 mm / 3.74 in
41 mm / 1.61 in
Size | Length
31 mm / 1.22 in
91 mm / 3.58 in
31 mm / 1.22 in
Weight
29 g / 1.02 oz
747 g / 26.40 oz
29 g / 1.02 oz
Function
Angle Of View
173° Diagonal (Q7)
107.8° Diagonal | 97.4° Horizontal | 74.4° Vertical
173° Diagonal (Q7)
Aperture
f/5.6
f/4 ~ f/22
f/5.6
Autofocus
No
No
No
Crop Factor
4.6
0.8
4.6
Focal Length
3.2 mm
20 mm
3.2 mm
Focal Length (35mm Equivalent)
14.7 mm
15.8 mm
14.7 mm
Focus Type
Internal
Image Stabilization
No
Performance
Max Magnification
0.06x
0.17x
0.06x
Min Focus Distance
90 mm / 3.54 in
250 mm / 9.84 in
90 mm / 3.54 in
Production
Accessory
Lens hood included
Debut
2011-06-23
2022-03-28
2011-06-23
Reviews
Neofiliac score
50%
75%
50%
Pros
- Extremely light and compact
- 173°FOV
- Comes with physical aperture ring
- Shift functionality
- 14-bladed aperture
- Extremely light and compact
- 173°FOV
Cons
- Dark and fixed f/5.6 aperture
- Not made for IQ
- Large diameter
- Dark and fixed f/5.6 aperture
- Not made for IQ
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