Compare Samyang 135mm F2.0 ED UMC vs Laowa 100mm f/2.8 2X Ultra Macro vs Pentax-FA 43mm F1.9
Construction
Aperture Blades
9 blades
13 blades, Nikon and Pentax mounts have 7 aperture blades.
8 blades
Colors
Black, silver
Form Factor
Medium Telephoto Prime Lens
Short Telephoto Prime Lens
Normal Prime Lens
Image Size
Full-Frame
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring, Distance scale, DoF scale
Lens Mount
Canon EF-mount, Canon EF-M-mount, Micro Four Thirds-mount, Fujifilm X-mount, Micro Four Thirds-mount, Nikon F-mount, Pentax K-mount, Samsung NX-mount, Sony A-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
Material
Aluminum
Motor
Screw drive from camera
Optical Formula | Elements
11 elements
12 elements
7 elements
Optical Formula | Groups
7 groups
10 groups
6 groups
Optical Formula | Special Glass
1 ED element, Ultra Multi Coating groups
HD + Super Protect coatings groups
Dimensions
Filter Diameter
77 mm / 3.03 in
67 mm / 2.64 in
49 mm / 1.93 in
Size | Diameter
82 mm / 3.23 in
72 mm / 2.83 in
64 mm / 2.52 in
Size | Length
122 mm / 4.80 in
125 mm / 4.92 in
27 mm / 1.06 in
Weight
830 g / 29.33 oz
638 g / 22.54 oz
155 g / 5.48 oz
Function
Angle Of View
18.2° Diagonal | 15.2° Horizontal | 10.2° Vertical
24.4° Diagonal | 20.4° Horizontal | 13.7° Vertical
53.4° Diagonal | 45.4° Horizontal | 31.2° Vertical
Aperture
f/2 ~ f/22
f/2.8 ~ f/22
f/1.9 ~ f/22
Autofocus
No
No
Yes
Focal Length
135 mm
100 mm
43 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
No
No
Performance
Max Magnification
2x
0.12x
Min Focus Distance
800 mm / 31.50 in
250 mm / 9.84 in
450 mm / 17.72 in
Production
Accessory
Lens hood included
Lens hood included
Debut
2015-01-12
2018-04-20
2021-02-24
Made In
China
Reviews
Neofiliac score
50%
59%
68%
Pros
- Smooth rendering
- Good resolution
- High 2x maximum magnification
- Apochromatic design
- Compact and lightweight
- Comes with physical aperture ring
Cons
- On the heavy side
- Lacks weather sealing
- Hard to MF at this focal length
- Lacks weather sealing
- Quite long, though not expectedly so
- Lacks weather sealing
- Expensive for a pancake lens
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