Compare Samyang 50mm F1.2 AS UMC CS vs Samyang MF 14mm F2.8 MK2 vs Sony 20mm F1.8 G
Construction
Aperture Blades
9 blades, Circular blades
9 blades
Colors
Black
Black
Black
Form Factor
Short Telephoto Prime Lens
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Image Size
APS-C
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring
Lens Mount
Canon EF-M-mount, Fujifilm X-mount, Micro Four Thirds-mount, Sony E-mount
Canon EF-mount, Canon EF-M-mount, Fujifilm X-mount, Micro Four Thirds-mount, Nikon F-mount, Sony E-mount
Sony E-mount
Motor
Linear Motor
Optical Formula | Elements
9 elements
14 elements
14 elements
Optical Formula | Groups
7 groups
10 groups
12 groups
Optical Formula | Special Glass
2 aspherical elements + Ultra Multi Coating groups
1 ASP, 1 hybrid ASP, 2 ED, 3 HR elements + UMC coating groups
2 aspherical + 3 ED elements, Nano AR coating groups
Dimensions
Filter Diameter
62 mm / 2.44 in
67 mm / 2.64 in
Size | Diameter
68 mm / 2.68 in
87 mm / 3.43 in
74 mm / 2.91 in
Size | Length
74 mm / 2.91 in
96 mm / 3.78 in
85 mm / 3.35 in
Weight
375 g / 13.25 oz
649 g / 22.93 oz
373 g / 13.18 oz
Function
Angle Of View
32.2° Diagonal | 27.0° Horizontal | 18.2° Vertical
114.2° Diagonal | 104.3° Horizontal | 81.2° Vertical
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
Aperture
f/1.2 ~ f/16
f/2.8 ~ f/22
f/1.8 ~ f/16
Autofocus
No
No
Yes
Crop Factor
1.5
Focal Length
50 mm
14 mm
20 mm
Focal Length (35mm Equivalent)
75.0 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
Yes
Yes
Performance
Max Magnification
0.08x
0.22x
Min Focus Distance
500 mm / 19.69 in
280 mm / 11.02 in
190 mm / 7.48 in
Production
Accessory
Lens hood included
Lens hood included
Lens hood included
Debut
2015-09-21
2020-05-25
2020-02-25
Made In
Korea
Model Name
SEL20F18G
Reviews
Neofiliac score
59%
59%
88%
Pros
- Bright maximum aperture
- Very sharp
- Good rendering
- Weather-sealed
- Improved focus ring
- Good build quality and ergonomics
- Weather-sealed
- Declickable aperture ring
- Very sharp corner to corner
- Low distortion
Cons
- Lacks weather sealing
- Lacks front filter thread
- Low maximum magnification
- Strong vignetting
- Not very sharp
- Not the most solidly-built
- f/1.8 limiting for night photography
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