Compare Samyang 135mm F2.0 ED UMC vs Samyang 50mm F1.4 AS UMC vs Samyang AF 18mm F2.8
Construction
Aperture Blades
9 blades
8 blades
7 blades
Form Factor
Medium Telephoto Prime Lens
Normal Prime Lens
Ultra 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, 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, Nikon F-mount, Pentax K-mount, Sony A-mount, Sony E-mount
Sony E-mount
Motor
Stepper motor
Optical Formula | Elements
11 elements
9 elements
9 elements
Optical Formula | Groups
7 groups
6 groups
8 groups
Optical Formula | Special Glass
1 ED element, Ultra Multi Coating groups
1 hybrid + 1 aspherical element, Ultra Multi Coating groups
2 HR, 3 aspherical, 3 ED elements + UMC coating groups
Dimensions
Filter Diameter
77 mm / 3.03 in
77 mm / 3.03 in
58 mm / 2.28 in
Size | Diameter
82 mm / 3.23 in
82 mm / 3.23 in
64 mm / 2.52 in
Size | Length
122 mm / 4.80 in
75 mm / 2.95 in
61 mm / 2.40 in
Weight
830 g / 29.33 oz
535 g / 18.90 oz
145 g / 5.12 oz
Function
Angle Of View
18.2° Diagonal | 15.2° Horizontal | 10.2° Vertical
46.8° Diagonal | 39.6° Horizontal | 27.0° Vertical
100.5° Diagonal | 90.0° Horizontal | 67.4° Vertical
Aperture
f/2 ~ f/22
f/1.4 ~ f/22
f/2.8 ~ f/22
Autofocus
No
No
Yes
Focal Length
135 mm
50 mm
18 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
No
No
Performance
Max Magnification
0.09x
Min Focus Distance
800 mm / 31.50 in
450 mm / 17.72 in
250 mm / 9.84 in
Production
Accessory
Lens hood included
Lens hood included
Debut
2015-01-12
2015-09-21
2019-08-29
Made In
Korea
Reviews
Neofiliac score
50%
59%
59%
Pros
- Smooth rendering
- Good resolution
- Bright maximum aperture
- Beautiful rendering
- Light and compact
- Fast autofocus
- High contrast
- Good sharpness
Cons
- On the heavy side
- Lacks weather sealing
- Hard to MF at this focal length
- Lacks weather sealing
- Not Samyang's highest grade of build
- Low maximum magnification
- Lacks weather sealing
- Focus breathing
- Strong vignetting wide open
- Full plastic construction
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