Compare Samyang 20mm F1.8 ED AS UMC vs 7Artisans 12mm F2.8 vs 7Artisans 35mm F1.2 Mark II
Construction
Aperture Blades
7 blades
7 blades
10 blades
Colors
Black
Black
Form Factor
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Manual focus lens, Prime lens
Image Size
Full-Frame
APS-C
APS-C
Lens Barrel
Physical aperture ring, Distance scale
Physical aperture ring, Distance scale, DoF scale
Lens 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-M-mount, Fujifilm X-mount, Sony E-mount, MFT-mount
E-mount, X-mount, EF-M-mount, Micro Four Thirds, Z-mount
Material
Aluminum
Optical Formula | Elements
13 elements
10 elements
6 elements
Optical Formula | Groups
12 groups
8 groups
5 groups
Optical Formula | Special Glass
Two aspherical + 3 ED elements, Ultra Multi Coating groups
Multi-layer coating groups
Dimensions
Filter Diameter
77 mm / 3.03 in
46 mm / 1.81 in
46 mm
Size | Diameter
83 mm / 3.27 in
Size | Length
88 mm / 3.46 in
66 mm / 2.60 in
Weight
497 g / 17.56 oz
295 g / 10.42 oz
150 g
Function
Angle Of View
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
100.5° Diagonal | 90.0° Horizontal | 67.4° Vertical
43.9°
Aperture
f/1.8 ~ f/22
f/2.8 ~ f/16
F/1.2 ~ f/22
Autofocus
No
No
Crop Factor
1.5
Focal Length
20 mm
12 mm
35 mm
Focal Length (35mm Equivalent)
18.0 mm
52.5 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
N/A
Weather Resistance
No
No
Performance
Min Focus Distance
200 mm / 7.87 in
200 mm / 7.87 in
28 cm
Production
Accessory
Lens hood included
Lens hood included
Debut
2016-08-08
2017-12-11
2020-12
Made In
China
China
Reviews
Neofiliac score
59%
40%
Pros
- Rather affordable
- Tactile physical controls
- Very affordable
- Very good sharpness
- Very good bokeh
- F1.2 aperture
- Fast autofocus
Cons
- Lacks weather sealing
- Not the highest grade of build
- Lacks weather sealing
- Not as solid as more premium alternatives
- Not the best optically
- Aperture ring with click is flimsy
- Bokeh and vignetting good only at F2.8
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