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Compare Samyang 20mm F1.8 ED AS UMC vs Laowa 15mm f/4 1:1 Macro

Construction

Aperture Blades
7 blades
14 blades
Colors
Black
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
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, Leica L-mount, Nikon F-mount, Pentax K-mount, Sony A-mount, Sony E-mount
Optical Formula | Elements
13 elements
12 elements
Optical Formula | Groups
12 groups
9 groups
Optical Formula | Special Glass
Two aspherical + 3 ED elements, Ultra Multi Coating groups
Three high refractive and one ED element groups

Dimensions

Filter Diameter
77 mm / 3.03 in
77 mm / 3.03 in
Size | Diameter
83 mm / 3.27 in
84 mm / 3.31 in
Size | Length
88 mm / 3.46 in
65 mm / 2.56 in
Weight
497 g / 17.56 oz
410 g / 14.49 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 ~ f/32
Autofocus
No
No
Focal Length
20 mm
15 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
Weather Resistance
No
No

Performance

Max Magnification
1x
Min Focus Distance
200 mm / 7.87 in
470 mm / 18.50 in

Production

Accessory
Lens hood included
Lens hood included
Debut
2016-08-08
2015-06-23
Made In
China

Reviews

Neofiliac score
59%
50%
Pros
  • Rather affordable
  • 1:1 reproduction
  • One of the widest macro lens for FF
  • Unique +/- 6mm shift feature
Cons
  • Lacks weather sealing
  • Not the highest grade of build
  • Dark maximum aperture
  • Lacks weather sealing
  • No EXIF communication

Price

Offers (incl. referral links)
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