Site Title

Compare Samyang 20mm F1.8 ED AS UMC vs Tokina atx-i 11-16mm F2.8 CF vs Tokina Firin 20mm F2 AF

Reviews

Neo score
59%
59%
59%
Pros
  • Rather affordable
  • Internal zoom
  • Clutch for MF-AF switch
  • Solid build quality
  • The best image quality from Tokina
  • Quite light
Cons
  • Lacks weather sealing
  • Not the highest grade of build
  • Average image quality
  • Lacks weather sealing
  • Lacks extra features

Price

Offers (incl. referral links)

Construction

Aperture Blades
7 blades
9 blades
9 blades
Colors
Black
Black
Form Factor
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Zoom Lens
Ultra Wide-Angle Prime Lens
Image Size
Full-Frame
APS-C
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
Canon EF-mount, Nikon F-mount
Sony E-mount
Motor
Screw drive from camera
Ring-type ultrasonic
Optical Formula | Elements
13 elements
13 elements
13 elements
Optical Formula | Groups
12 groups
11 groups
11 groups
Optical Formula | Special Glass
Two aspherical + 3 ED elements, Ultra Multi Coating groups
2 aspherical elements and 1 SD element groups
3 super-low-dispersion + 2 ED elements groups

Dimensions

Filter Diameter
77 mm / 3.03 in
77 mm / 3.03 in
62 mm / 2.44 in
Size | Diameter
83 mm / 3.27 in
84 mm / 3.31 in
73 mm / 2.87 in
Size | Length
88 mm / 3.46 in
89 mm / 3.50 in
82 mm / 3.23 in
Weight
497 g / 17.56 oz
555 g / 19.61 oz
464 g / 16.40 oz

Function

Angle Of View
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
105.4° Diagonal | 95.0° Horizontal | 72.1° Vertical (wide) ~ 84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical (tele)
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
Aperture
f/1.8 ~ f/22
f/2.8 ~ f/22
f/2 ~ f/22
Autofocus
No
Yes
Crop Factor
1.5
Focal Length
20 mm
11 mm ~ 16 mm
20 mm
Focal Length (35mm Equivalent)
16.5 mm ~ 24.0 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
No
Zoom Type
Internal zoom

Performance

Max Magnification
0.1x
Min Focus Distance
200 mm / 7.87 in
300 mm / 11.81 in
280 mm / 11.02 in

Production

Accessory
Lens hood included
Lens Hood: BH-77B (supplied)
Lens Hood: BH-623 (supplied)
Debut
2016-08-08
2019-11-15
2018-02-22
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