Compare Samyang 16mm F2 ED AS UMC CS vs Samyang 20mm F1.8 ED AS UMC vs 7Artisans M28mm F1.4
Construction
Aperture Blades
8 blades
7 blades
13 blades
Colors
Black
Form Factor
Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Manual focus lens, Prime lens
Image Size
APS-C
Full-Frame
Full frame
Lens Barrel
Physical aperture ring, Distance scale
Physical aperture ring, Distance scale
Lens Mount
Canon EF-M-mount, Canon EF-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
M-mount
Material
Metal barrel, metal mount
Optical Formula | Elements
13 elements
13 elements
11 elements
Optical Formula | Groups
11 groups
12 groups
9 groups
Optical Formula | Special Glass
1 ED glass element, 1 aspheric element, 1 hybrid aspheric element groups
Two aspherical + 3 ED elements, Ultra Multi Coating groups
1x aspherical, 2x ED groups
Dimensions
Filter Diameter
77 mm / 3.03 in
77 mm / 3.03 in
52 mm
Size | Diameter
83 mm / 3.27 in
83 mm / 3.27 in
Size | Length
89 mm / 3.50 in
88 mm / 3.46 in
Weight
583 g / 20.60 oz
497 g / 17.56 oz
488 g
Function
Angle Of View
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
75°
Aperture
f/2 ~ f/22
f/1.8 ~ f/22
F/1.4 ~ f/16
Autofocus
No
No
Crop Factor
1.5
Focal Length
16 mm
20 mm
28 mm
Focal Length (35mm Equivalent)
24.0 mm
Focus Type
Internal
Image Stabilization
No
No
N/A
Weather Resistance
No
Performance
Min Focus Distance
200 mm / 7.87 in
200 mm / 7.87 in
70 cm
Production
Accessory
Lens hood included
Lens hood included
Debut
2013-06-13
2016-08-08
2018-11
Made In
China
Reviews
Neofiliac score
50%
59%
Pros
- A bit large for an APS-C lens
- Rather affordable
Cons
- Not the best grade of build
- Not the strongest IQ
- Lacks weather sealing
- Not the highest grade of build
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