Compare Samyang 135mm F2.0 ED UMC vs Samyang 20mm F1.8 ED AS UMC vs Canon EF 24-105mm F3.5-5.6
Construction
Aperture Blades
9 blades
7 blades
7 blades
Colors
Black
Form Factor
Medium Telephoto Prime Lens
Ultra Wide-Angle Prime Lens
Standard Zoom Lens
Image Size
Full-Frame
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring, Distance scale
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
Canon EF-mount
Motor
Stepper motor
Optical Formula | Elements
11 elements
13 elements
17 elements
Optical Formula | Groups
7 groups
12 groups
13 groups
Optical Formula | Special Glass
1 ED element, Ultra Multi Coating groups
Two aspherical + 3 ED elements, Ultra Multi Coating groups
Dimensions
Filter Diameter
77 mm / 3.03 in
77 mm / 3.03 in
77 mm / 3.03 in
Size | Diameter
82 mm / 3.23 in
83 mm / 3.27 in
83 mm / 3.27 in
Size | Length
122 mm / 4.80 in
88 mm / 3.46 in
104 mm / 4.09 in
Weight
830 g / 29.33 oz
497 g / 17.56 oz
525 g / 18.55 oz
Function
Angle Of View
18.2° Diagonal | 15.2° Horizontal | 10.2° Vertical
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical (wide) ~ 23.3° Diagonal | 19.5° Horizontal | 13.0° Vertical (tele)
Aperture
f/2 ~ f/22
f/1.8 ~ f/22
f/3.5–5.6 ~ f/22–32
Autofocus
No
No
Yes
Focal Length
135 mm
20 mm
24 mm ~ 105 mm
Focus Type
Internal
Internal
Extending front
Image Stabilization
No
No
Yes
Weather Resistance
No
No
No
Zoom Type
External zoom
Performance
Max Magnification
0.3x
Min Focus Distance
800 mm / 31.50 in
200 mm / 7.87 in
400 mm / 15.75 in
Production
Accessory
Lens hood included
Lens hood included
Lens Hood: EW-83M (sold separately), LP1219 lens pouch
Debut
2015-01-12
2016-08-08
2014-09-15
Reviews
Neofiliac score
50%
59%
52%
Pros
- Smooth rendering
- Good resolution
- Rather affordable
- Optically stabilized
- Useful zoom range
Cons
- On the heavy side
- Lacks weather sealing
- Hard to MF at this focal length
- Lacks weather sealing
- Not the highest grade of build
- External zoom without zoom lock
- Lens hood not included
- Lacks weather sealing
- Not the highest build grade from Canon
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