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Compare Samyang 20mm F1.8 ED AS UMC vs Zeiss Batis 40mm F2

Construction

Aperture Blades
7 blades
Form Factor
Ultra Wide-Angle Prime Lens
Normal Prime Lens
Image Size
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale
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
Sony E-mount
Optical Formula | Elements
13 elements
9 elements
Optical Formula | Groups
12 groups
8 groups
Optical Formula | Special Glass
Two aspherical + 3 ED elements, Ultra Multi Coating groups
APD and aspherical elements + T* coating groups

Dimensions

Filter Diameter
77 mm / 3.03 in
67 mm / 2.64 in
Size | Diameter
83 mm / 3.27 in
91 mm / 3.58 in
Size | Length
88 mm / 3.46 in
93 mm / 3.66 in
Weight
497 g / 17.56 oz
361 g / 12.76 oz

Function

Angle Of View
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
56.8° Diagonal | 48.5° Horizontal | 33.4° Vertical
Aperture
f/1.8 ~ f/22
f/2 ~ f/22
Autofocus
No
Yes
Focal Length
20 mm
40 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
Weather Resistance
No
Yes

Performance

Max Magnification
0.3
Min Focus Distance
200 mm / 7.87 in
240 mm / 9.45 in

Production

Accessory
Lens hood included
Lens hood included
Debut
2016-08-08
2018-09-27

Reviews

Neofiliac score
59%
78%
Pros
  • Rather affordable
  • Weather-sealed
  • Excellent image quality
Cons
  • Lacks weather sealing
  • Not the highest grade of build
  • Barrel with large diameter

Price

Offers (incl. referral links)
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