Compare Samyang 50mm F1.2 AS UMC CS vs Samyang 20mm F1.8 ED AS UMC vs Samyang XP 85mm F1.2
Construction
Aperture Blades
9 blades, Circular blades
7 blades
9 blades
Colors
Black
Black
Form Factor
Short Telephoto Prime Lens
Ultra Wide-Angle Prime Lens
Short Telephoto Prime Lens
Image Size
APS-C
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Physical aperture ring, Distance scale
Distance scale
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, Pentax K-mount, Samsung NX-mount, Sony A-mount, Sony E-mount
Canon EF-mount, Nikon F-mount
Material
Aluminum
Optical Formula | Elements
9 elements
13 elements
10 elements
Optical Formula | Groups
7 groups
12 groups
7 groups
Optical Formula | Special Glass
2 aspherical elements + Ultra Multi Coating groups
Two aspherical + 3 ED elements, Ultra Multi Coating groups
1 aspherical + 2 high refractive elements + Ultra Multi Coating groups
Dimensions
Filter Diameter
62 mm / 2.44 in
77 mm / 3.03 in
Size | Diameter
68 mm / 2.68 in
83 mm / 3.27 in
93 mm / 3.66 in
Size | Length
74 mm / 2.91 in
88 mm / 3.46 in
98 mm / 3.86 in
Weight
375 g / 13.25 oz
497 g / 17.56 oz
1050 g / 37.10 oz
Function
Angle Of View
32.2° Diagonal | 27.0° Horizontal | 18.2° Vertical
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
28.6° Diagonal | 23.9° Horizontal | 16.1° Vertical
Aperture
f/1.2 ~ f/16
f/1.8 ~ f/22
f/1.2 ~ f/16
Autofocus
No
No
No
Crop Factor
1.5
Focal Length
50 mm
20 mm
85 mm
Focal Length (35mm Equivalent)
75.0 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
No
No
Performance
Max Magnification
0.13x
Min Focus Distance
500 mm / 19.69 in
200 mm / 7.87 in
800 mm / 31.50 in
Production
Accessory
Lens hood included
Lens hood included
Lens hood included
Debut
2015-09-21
2016-08-08
2016-09-12
Reviews
Neofiliac score
59%
59%
40%
Pros
- Bright maximum aperture
- Very sharp
- Good rendering
- Rather affordable
- Very sharp
- Smooth rendering
- Bright maximum aperture
- Beautifully constructed
Cons
- Lacks weather sealing
- Lacks weather sealing
- Not the highest grade of build
- Large and heavy
- Lacks weather sealing
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