Compare Samyang 8mm F2.8 UMC Fisheye II vs Samyang 20mm F1.8 ED AS UMC vs Laowa 17mm f/1.8
Construction
Aperture Blades
6 blades
7 blades
7 blades
Colors
Silver, black
Form Factor
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Wide-Angle Prime Lens
Image Size
APS-C
Full-Frame
MFT
Lens Barrel
Physical aperture ring, Distance scale
Physical aperture ring, Distance scale
Physical aperture ring, Distance scale, DoF scale
Lens Mount
Canon EF-M-mount, Fujifilm X-mount, Samsung NX-mount, Sony E-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
Micro Four Thirds-mount
Optical Formula | Elements
11 elements
13 elements
9 elements
Optical Formula | Groups
8 groups
12 groups
7 groups
Optical Formula | Special Glass
2 aspherical + 3 ED, Ultra Multi Coating groups
Two aspherical + 3 ED elements, Ultra Multi Coating groups
Frog Eye Coating (FEC) groups
Dimensions
Filter Diameter
77 mm / 3.03 in
46 mm / 1.81 in
Size | Diameter
60 mm / 2.36 in
83 mm / 3.27 in
55 mm / 2.17 in
Size | Length
65 mm / 2.56 in
88 mm / 3.46 in
51 mm / 2.01 in
Weight
265 g / 9.36 oz
497 g / 17.56 oz
172 g / 6.08 oz
Function
Angle Of View
180° Diagonal (fisheye)
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
65.0° Diagonal | 55.8° Horizontal | 38.9° Vertical
Aperture
f/2.8 ~ f/22
f/1.8 ~ f/22
f/1.8 ~ f/1.8
Autofocus
No
No
No
Crop Factor
1.5
2.0
Focal Length
8 mm
20 mm
17 mm
Focal Length (35mm Equivalent)
12.0 mm
34.0 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
No
No
Performance
Min Focus Distance
300 mm / 11.81 in
200 mm / 7.87 in
150 mm / 5.91 in
Production
Accessory
Lens hood included
Lens hood included
Debut
2014-03-21
2016-08-08
2019-10-21
Made In
China
Reviews
Neofiliac score
31%
59%
50%
Pros
- 180° FOV
- Reasonably well built
- Rather affordable
- Very light in the hand
- Versatile focal length
- Very affordable
Cons
- Lacks front filter thread
- Lacks weather sealing
- Lacks weather sealing
- Not the highest grade of build
- Lacks weather sealing
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