Compare Samyang 20mm F1.8 ED AS UMC vs Voigtlander Ultron 28mm F2
Variants
Type I
Type II
Construction
Aperture Blades
7 blades
10 blades, straight cut
Form Factor
Ultra Wide-Angle Prime Lens
Manual-focus prime lens for rangefinder cameras
Image Size
Full-Frame
Full-frame
Lens Barrel
Physical aperture ring, Distance 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
M-mount bayonet (VM)
Optical Formula | Elements
13 elements
10 elements
Optical Formula | Groups
12 groups
7 groups
Optical Formula | Special Glass
Two aspherical + 3 ED elements, Ultra Multi Coating groups
Dimensions
Filter Diameter
77 mm / 3.03 in
39 mm
Size | Diameter
83 mm / 3.27 in
Size | Length
88 mm / 3.46 in
36 mm
Weight
497 g / 17.56 oz
Function
Angle Of View
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
74.51°
Aperture
f/1.8 ~ f/22
f/2 ~ f/22
Autofocus
No
Focal Length
20 mm
28 mm
Focus Type
Internal
Image Stabilization
No
Weather Resistance
No
Performance
Min Focus Distance
200 mm / 7.87 in
0.5 m (Rangefinder coupling ∞ ~ 0.7 m)
Production
Accessory
Lens hood included
Lens hood LH-4N or LH-12, optional
Debut
2016-08-08
2021
Made In
Japan
Reviews
Neofiliac score
59%
Pros
- Rather affordable
- Amazing build quality
- Very sharp
- Easy to focus
Cons
- Lacks weather sealing
- Not the highest grade of build
- Does not work well with thick filter stack
- Vignetting at f/2
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