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Compare Samyang 20mm F1.8 ED AS UMC vs Zeiss Loxia 25mm F2.4

Construction

Aperture Blades
7 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
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
Sony E-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
1 APD + 2 aspherical elements + T* coating groups

Dimensions

Filter Diameter
77 mm / 3.03 in
52 mm / 2.05 in
Size | Diameter
83 mm / 3.27 in
62 mm / 2.44 in
Size | Length
88 mm / 3.46 in
75 mm / 2.95 in
Weight
497 g / 17.56 oz
393 g / 13.89 oz

Function

Angle Of View
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
81.8° Diagonal | 71.5° Horizontal | 51.3° Vertical
Aperture
f/1.8 ~ f/22
f/2.4 ~ f/22
Autofocus
No
No
Focal Length
20 mm
25 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
Weather Resistance
No
Yes

Performance

Max Magnification
0.16
Min Focus Distance
200 mm / 7.87 in
250 mm / 9.84 in

Production

Accessory
Lens hood included
Debut
2016-08-08
2018-02-14
Made In
Japan

Reviews

Neofiliac score
59%
86%
Pros
  • Rather affordable
  • Weather-sealed
  • Smooth focus ring
  • Excellent image quality
  • Declickable aperture ring
Cons
  • Lacks weather sealing
  • Not the highest grade of build

Price

Offers (incl. referral links)
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