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Compare Samyang 20mm F1.8 ED AS UMC vs Leica Summilux-M 21mm F1.4

Construction

Aperture Blades
7 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, 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
Leica M-mount
Optical Formula | Elements
13 elements
10 elements
Optical Formula | Groups
12 groups
8 groups
Optical Formula | Special Glass
Two aspherical + 3 ED elements, Ultra Multi Coating groups
2 aspherical elements5 anomolous dispersion elements groups

Dimensions

Filter Diameter
77 mm / 3.03 in
Size | Diameter
83 mm / 3.27 in
70 mm / 2.76 in
Size | Length
88 mm / 3.46 in
66 mm / 2.60 in
Weight
497 g / 17.56 oz
580 g / 20.49 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/1.4 ~ f/16
Autofocus
No
No
Focal Length
20 mm
21 mm
Focus Type
Internal
Extending front
Image Stabilization
No
No
Weather Resistance
No
No

Performance

Max Magnification
0.03x
Min Focus Distance
200 mm / 7.87 in
700 mm / 27.56 in

Production

Accessory
Lens hood included
Lens hood included
Debut
2016-08-08
2008-09-15
Made In
Germany

Reviews

Neofiliac score
59%
78%
Pros
  • Rather affordable
  • Very bright maximum aperture
  • Gorgeous rendering
  • Very sharp
Cons
  • Lacks weather sealing
  • Not the highest grade of build
  • Low maximum magnification
  • Lacks weather sealing

Price

Offers (incl. referral links)
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