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Compare Samyang 20mm F1.8 ED AS UMC vs Nikon 28mm F1.4E ED

Construction

Aperture Blades
7 blades
9 blades
Colors
Black
Form Factor
Ultra Wide-Angle Prime Lens
Wide-Angle Prime Lens
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
Nikon F-mount
Material
Magnesium alloy
Motor
Ring-type ultrasonic
Optical Formula | Elements
13 elements
14 elements
Optical Formula | Groups
12 groups
11 groups
Optical Formula | Special Glass
Two aspherical + 3 ED elements, Ultra Multi Coating groups
3 aspherical + 2 ED element, Nano Crystal and fluorine coatings groups

Dimensions

Filter Diameter
77 mm / 3.03 in
77 mm / 3.03 in
Size | Diameter
83 mm / 3.27 in
83 mm / 3.27 in
Size | Length
88 mm / 3.46 in
101 mm / 3.98 in
Weight
497 g / 17.56 oz
645 g / 22.79 oz

Function

Angle Of View
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
75.4° Diagonal | 65.5° Horizontal | 46.4° Vertical
Aperture
f/1.8 ~ f/22
f/1.4–16 ~ f/1.4–16
Autofocus
No
Yes
Focal Length
20 mm
28 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
Weather Resistance
No
Yes

Performance

Max Magnification
0.17x
Min Focus Distance
200 mm / 7.87 in
280 mm / 11.02 in

Production

Accessory
Lens hood included
Debut
2016-08-08
2017-05-31

Reviews

Neofiliac score
59%
86%
Pros
  • Rather affordable
  • Bright maximum aperture
  • Weather-sealed
  • Excellent optical performance
  • Natural perspective
Cons
  • Lacks weather sealing
  • Not the highest grade of build
  • Quite expensive

Price

Offers (incl. referral links)
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