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Compare Samyang 20mm F1.8 ED AS UMC vs Laowa 15mm f/4.5 Zero-D Shift

Construction

Aperture Blades
7 blades
5 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, 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-mount, Canon RF-mount, Nikon F-mount, Nikon Z-mount, Sony E-mount
Optical Formula | Elements
13 elements
17 elements
Optical Formula | Groups
12 groups
11 groups
Optical Formula | Special Glass
Two aspherical + 3 ED elements, Ultra Multi Coating groups

Dimensions

Filter Diameter
77 mm / 3.03 in
Size | Diameter
83 mm / 3.27 in
79 mm / 3.11 in
Size | Length
88 mm / 3.46 in
103 mm / 4.06 in
Weight
497 g / 17.56 oz
597 g / 21.10 oz

Function

Angle Of View
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
110.6° Diagonal | 100.4° Horizontal | 77.3° Vertical
Aperture
f/1.8 ~ f/22
f/4.5 ~ f/22
Autofocus
No
No
Focal Length
20 mm
15 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
Weather Resistance
No

Performance

Min Focus Distance
200 mm / 7.87 in
200 mm / 7.87 in

Production

Accessory
Lens hood included
Lens hood sold separately
Debut
2016-08-08
2020-10-30
Made In
China

Reviews

Neofiliac score
59%
31%
Pros
  • Rather affordable
  • One of the widest lens with shift function
  • Low vignetting
Cons
  • Lacks weather sealing
  • Not the highest grade of build
  • Dark maximum aperture
  • Lacks front filter thread
  • Lens hood not included
  • Quite expensive

Price

Offers (incl. referral links)
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