Compare Samyang 135mm F2.0 ED UMC vs Samyang 20mm F1.8 ED AS UMC vs Leica Summarit-M 35mm F2.4 ASPH
Construction
Aperture Blades
9 blades
7 blades
9 blades
Colors
Black and silver
Form Factor
Medium Telephoto Prime Lens
Ultra Wide-Angle Prime Lens
Wide-Angle Prime Lens
Image Size
Full-Frame
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring, Distance scale
Physical aperture ring, Distance 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 EF-M-mount, Fujifilm X-mount, Micro Four Thirds-mount, Nikon F-mount, Pentax K-mount, Samsung NX-mount, Sony A-mount, Sony E-mount
Leica M-mount
Material
Anodized
Optical Formula | Elements
11 elements
13 elements
6 elements
Optical Formula | Groups
7 groups
12 groups
4 groups
Optical Formula | Special Glass
1 ED element, Ultra Multi Coating groups
Two aspherical + 3 ED elements, Ultra Multi Coating groups
"high-refraction glass with anomalous partial dispersion" groups
Dimensions
Filter Diameter
77 mm / 3.03 in
77 mm / 3.03 in
46 mm / 1.81 in
Size | Diameter
82 mm / 3.23 in
83 mm / 3.27 in
52 mm / 2.05 in
Size | Length
122 mm / 4.80 in
88 mm / 3.46 in
34 mm / 1.34 in
Weight
830 g / 29.33 oz
497 g / 17.56 oz
197 g / 6.96 oz
Function
Angle Of View
18.2° Diagonal | 15.2° Horizontal | 10.2° Vertical
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
63.5° Diagonal | 54.4° Horizontal | 37.8° Vertical
Aperture
f/2 ~ f/22
f/1.8 ~ f/22
f/2.4 ~ f/16
Autofocus
No
No
No
Focal Length
135 mm
20 mm
35 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
No
No
Performance
Min Focus Distance
800 mm / 31.50 in
200 mm / 7.87 in
800 mm / 31.50 in
Production
Accessory
Lens hood included
Lens hood included
Lens hood included
Debut
2015-01-12
2016-08-08
2014-09-16
Made In
Germany
Reviews
Neofiliac score
50%
59%
86%
Pros
- Smooth rendering
- Good resolution
- Rather affordable
- Very compact and lightweight
- Beautiful construction
Cons
- On the heavy side
- Lacks weather sealing
- Hard to MF at this focal length
- Lacks weather sealing
- Not the highest grade of build
- Lacks weather sealing
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