Compare Laowa 100mm f/2.8 2X Ultra Macro vs Laowa 20mm F4 Zero-D Shift vs Pentax-FA645 35mm F3.5
Construction
Aperture Blades
13 blades, Nikon and Pentax mounts have 7 aperture blades.
14 blades
9 blades, Rounded aperture
Form Factor
Short Telephoto Prime Lens
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Image Size
Full-Frame
Medium Format (44x33)
Medium Format (645)
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring, Distance scale
Lens Mount
Canon EF-mount, Canon RF-mount, Leica L-mount, Nikon F-mount, Nikon Z-mount, Pentax K-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 645 KAF2 bayonet
Optical Formula | Elements
12 elements
16 elements
10 elements
Optical Formula | Groups
10 groups
11 groups
7 groups
Optical Formula | Special Glass
2 aspherical elements, 3 ED elements groups
HRI and hybrid aspherical elements, HD and SP coatings groups
Dimensions
Filter Diameter
67 mm / 2.64 in
82 mm / 3.23 in
82 mm / 3.23 in
Size | Diameter
72 mm / 2.83 in
95 mm / 3.74 in
88 mm / 3.46 in
Size | Length
125 mm / 4.92 in
91 mm / 3.58 in
90 mm / 3.54 in
Weight
638 g / 22.54 oz
747 g / 26.40 oz
570 g / 20.14 oz
Function
Angle Of View
24.4° Diagonal | 20.4° Horizontal | 13.7° Vertical
107.8° Diagonal | 97.4° Horizontal | 74.4° Vertical
89.9° Diagonal | 79.4° Horizontal | 57.9° Vertical
Aperture
f/2.8 ~ f/22
f/4 ~ f/22
f/3.5 ~ f/32
Autofocus
No
No
Yes
Crop Factor
0.8
0.6
Focal Length
100 mm
20 mm
35 mm
Focal Length (35mm Equivalent)
15.8 mm
21.7 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
No
Performance
Max Magnification
2x
0.17x
0.25x
Min Focus Distance
250 mm / 9.84 in
250 mm / 9.84 in
300 mm / 11.81 in
Production
Accessory
Lens hood included
Lens Hood: PH-RBE82 (supplied)
Debut
2018-04-20
2022-03-28
2015-11-11
Made In
China
Reviews
Neofiliac score
59%
75%
68%
Pros
- High 2x maximum magnification
- Apochromatic design
- Comes with physical aperture ring
- Shift functionality
- 14-bladed aperture
- 0.25x reproduction ratio
- Rather compact for what it is
- Comes with physical aperture ring
Cons
- Lacks weather sealing
- Quite long, though not expectedly so
- Large diameter
- Lacks weather sealing
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