Compare Samyang 20mm F1.8 ED AS UMC vs Canon TS-E 135mm F4
Construction
Aperture Blades
7 blades
9 blades
Colors
Black
Form Factor
Ultra Wide-Angle Prime Lens
Medium Telephoto Prime Lens
Image Size
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale
Distance scale
Lens 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
Canon EF-mount
Material
Magnesium alloy
Optical Formula | Elements
13 elements
11 elements
Optical Formula | Groups
12 groups
7 groups
Optical Formula | Special Glass
Two aspherical + 3 ED elements, Ultra Multi Coating groups
Molded glass aspherical and UD elements + SWC and ASC coatings groups
Dimensions
Filter Diameter
77 mm / 3.03 in
82 mm / 3.23 in
Size | Diameter
83 mm / 3.27 in
89 mm / 3.50 in
Size | Length
88 mm / 3.46 in
139 mm / 5.47 in
Weight
497 g / 17.56 oz
1110 g / 39.22 oz
Function
Angle Of View
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
18.2° Diagonal | 15.2° Horizontal | 10.2° Vertical
Aperture
f/1.8 ~ f/22
f/4 ~ f/45
Autofocus
No
No
Focal Length
20 mm
135 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
Weather Resistance
No
Performance
Max Magnification
0.5x
Min Focus Distance
200 mm / 7.87 in
490 mm / 19.29 in
Production
Accessory
Lens hood included
Lens hood included
Debut
2016-08-08
2017-08-29
Reviews
Neofiliac score
59%
43%
Pros
- Rather affordable
- Tilt-shift capability
- 0.5x reproduction ratio
- Superb build quality
Cons
- Lacks weather sealing
- Not the highest grade of build
- On the heavy side
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