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Compare Samyang 20mm F1.8 ED AS UMC vs KamLan 8mm F3.0 Fisheye

Construction

Aperture Blades
7 blades
Form Factor
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Image Size
Full-Frame
APS-C
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
Canon EF-M-mount, Sony E-mount
Optical Formula | Elements
13 elements
11 elements
Optical Formula | Groups
12 groups
9 groups
Optical Formula | Special Glass
Two aspherical + 3 ED elements, Ultra Multi Coating groups

Dimensions

Filter Diameter
77 mm / 3.03 in
Size | Diameter
83 mm / 3.27 in
Size | Length
88 mm / 3.46 in
Weight
497 g / 17.56 oz
245 g / 8.66 oz

Function

Angle Of View
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
180.0° Diagonal (fisheye)
Aperture
f/1.8 ~ f/22
f/3 ~ f/22
Autofocus
No
No
Crop Factor
1.5
Focal Length
20 mm
8 mm
Focal Length (35mm Equivalent)
12.0 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
Weather Resistance
No
No

Performance

Min Focus Distance
200 mm / 7.87 in
100 mm / 3.94 in

Production

Accessory
Lens hood included
Lens hood included
Debut
2016-08-08
2018-03-21

Reviews

Neofiliac score
59%
40%
Pros
  • Rather affordable
  • 180° FOV
  • Compact and lightweight
Cons
  • Lacks weather sealing
  • Not the highest grade of build
  • Lacks front filter thread
  • Lacks weather sealing

Price

Offers (incl. referral links)
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