Compare Samyang 21mm F1.4 ED AS UMC CS vs Samyang MF 14mm F2.8 MK2 vs Sony 50mm F2.5 G
Construction
Aperture Blades
9 blades, Circular blades
9 blades
7 blades
Colors
Black
Black
Form Factor
Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Normal 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
Material
Aluminum alloy
Motor
Linear Motor
Optical Formula | Elements
8 elements
14 elements
9 elements
Optical Formula | Groups
7 groups
10 groups
9 groups
Optical Formula | Special Glass
3 aspherical and 2 ED elements + Ultra Multi Coating groups
1 ASP, 1 hybrid ASP, 2 ED, 3 HR elements + UMC coating groups
1 ED and 2 aspherical elements groups
Dimensions
Filter Diameter
58 mm / 2.28 in
49 mm / 1.93 in
Size | Diameter
64 mm / 2.52 in
87 mm / 3.43 in
68 mm / 2.68 in
Size | Length
68 mm / 2.68 in
96 mm / 3.78 in
45 mm / 1.77 in
Weight
275 g / 9.72 oz
649 g / 22.93 oz
174 g / 6.15 oz
Function
Angle Of View
69.0° Diagonal | 59.5° Horizontal | 41.7° Vertical
114.2° Diagonal | 104.3° Horizontal | 81.2° Vertical
46.8° Diagonal | 39.6° Horizontal | 27.0° Vertical
Aperture
f/1.4 ~ f/22
f/2.8 ~ f/22
f/2.5 ~ f/22
Autofocus
No
No
Yes
Crop Factor
1.5
Focal Length
21 mm
14 mm
50 mm
Focal Length (35mm Equivalent)
31.5 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
Yes
Yes
Performance
Max Magnification
0.08x
0.21x
Min Focus Distance
280 mm / 11.02 in
280 mm / 11.02 in
310 mm / 12.20 in
Production
Accessory
Lens hood included
Lens hood included
Lens hood included
Debut
2015-09-21
2020-05-25
2021-03-23
Made In
Korea
Model Name
SEL50F25G
Reviews
Neofiliac score
50%
59%
95%
Pros
- Bright maximum aperture
- Very sharp
- Good color rendition
- Weather-sealed
- Improved focus ring
- Good build quality and ergonomics
- Compact and lightweight
- Weather-sealed
- Comes with physical aperture ring
- High contrast
Cons
- Lacks weather sealing
- Lacks front filter thread
- Low maximum magnification
- Strong vignetting
- Not very sharp
- Focus breathing
- Relatively small f/1.8 aperture
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