Compare Samyang 20mm F1.8 ED AS UMC vs Zeiss Milvus 21mm F2.8
Construction
Aperture Blades
7 blades
Form Factor
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Image Size
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale
Physical aperture ring, 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-mount, Nikon F-mount
Optical Formula | Elements
13 elements
16 elements
Optical Formula | Groups
12 groups
13 groups
Optical Formula | Special Glass
Two aspherical + 3 ED elements, Ultra Multi Coating groups
4 APD groups
Dimensions
Filter Diameter
77 mm / 3.03 in
82 mm / 3.23 in
Size | Diameter
83 mm / 3.27 in
72 mm / 2.83 in
Size | Length
88 mm / 3.46 in
95 mm / 3.74 in
Weight
497 g / 17.56 oz
851 g / 30.07 oz
Function
Angle Of View
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
91.7° Diagonal | 81.2° Horizontal | 59.5° Vertical
Aperture
f/1.8 ~ f/22
f/2.8 ~ f/22
Autofocus
No
No
Focal Length
20 mm
21 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
Weather Resistance
No
Yes
Performance
Max Magnification
0.2
Min Focus Distance
200 mm / 7.87 in
220 mm / 8.66 in
Production
Accessory
Lens hood included
Lens hood included
Debut
2016-08-08
2015-09-10
Made In
Japan
Reviews
Neofiliac score
59%
78%
Pros
- Rather affordable
- Weather-sealed
- F-mount with physical aperture ring
- Exceptional image quality
- Solid build quality
Cons
- Lacks weather sealing
- Not the highest grade of build
- On the heavy side
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