Compare Samyang 10mm F2.8 ED AS NCS CS vs Tokina Firin 20mm F2 AF vs Tokina 85mm F1.8 atx-m
Construction
Aperture Blades
6 blades, Manual aperture setting via lens ring
9 blades
9 blades
Colors
Black
Form Factor
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Short Telephoto Prime Lens
Image Size
APS-C
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
Lens Mount
Canon EF-M-mount, Canon EF-mount, Micro Four Thirds-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
Sony E-mount
Motor
Ring-type ultrasonic
Stepper motor
Optical Formula | Elements
14 elements
13 elements
10 elements
Optical Formula | Groups
10 groups
11 groups
7 groups
Optical Formula | Special Glass
2 aspherical elements, 1 ED glass element groups
3 super-low-dispersion + 2 ED elements groups
1 SD element + Multi-coating groups
Dimensions
Filter Diameter
62 mm / 2.44 in
72 mm / 2.83 in
Size | Diameter
86 mm / 3.39 in
73 mm / 2.87 in
93 mm / 3.66 in
Size | Length
77 mm / 3.03 in
82 mm / 3.23 in
80 mm / 3.15 in
Weight
580 g / 20.49 oz
464 g / 16.40 oz
645 g / 22.79 oz
Function
Angle Of View
110.6° Diagonal | 100.4° Horizontal | 77.3° Vertical
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
28.6° Diagonal | 23.9° Horizontal | 16.1° Vertical
Aperture
f/2.8 ~ f/22
f/2 ~ f/22
f/1.8 ~ f/16
Autofocus
No
Yes
Crop Factor
1.5
Focal Length
10 mm
20 mm
85 mm
Focal Length (35mm Equivalent)
15.0 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
No
Performance
Max Magnification
0.1x
0.13x
Min Focus Distance
250 mm / 9.84 in
280 mm / 11.02 in
800 mm / 31.50 in
Production
Accessory
Lens Hood: Integrated hood (supplied)
Lens Hood: BH-623 (supplied)
Lens hood included
Debut
2013-12-06
2018-02-22
2020-01-17
Reviews
Neofiliac score
40%
59%
50%
Pros
- One of the widest rectilinear lens for APS-C
- Reasonable IQ
- Bright f/2.8 aperture
- The best image quality from Tokina
- Quite light
- Good build quality
- Fast and silent AF
- Good rendering
Cons
- Lacks front filter thread
- Lacks weather sealing
- Lacks extra features
- Large and heavy for what it is
- Lacks weather sealing
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