Compare Samyang 10mm F2.8 ED AS NCS CS vs Tokina Firin 20mm F2 MF vs Tokina SZX 400mm F8 Reflex
Construction
Aperture Blades
6 blades, Manual aperture setting via lens ring
9 blades
Colors
Black
Black
Form Factor
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Super Telephoto Prime Lens
Image Size
APS-C
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale, DoF scale
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
Canon EF-mount, Micro Four Thirds-mount, Nikon F-mount, Sony E-mount
Optical Formula | Elements
14 elements
13 elements
6 elements
Optical Formula | Groups
10 groups
11 groups
5 groups
Optical Formula | Special Glass
2 aspherical elements, 1 ED glass element groups
Multi-layer coatings groups
Dimensions
Filter Diameter
62 mm / 2.44 in
67 mm / 2.64 in
Size | Diameter
86 mm / 3.39 in
62 mm / 2.44 in
74 mm / 2.91 in
Size | Length
77 mm / 3.03 in
69 mm / 2.72 in
77 mm / 3.03 in
Weight
580 g / 20.49 oz
490 g / 17.31 oz
355 g / 12.54 oz
Function
Angle Of View
110.6° Diagonal | 100.4° Horizontal | 77.3° Vertical
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
6.2° Diagonal | 5.2° Horizontal | 3.4° Vertical
Aperture
f/2.8 ~ f/22
f/2 ~ f/22
f/8 ~ f/8
Autofocus
No
No
No
Crop Factor
1.5
Focal Length
10 mm
20 mm
400 mm
Focal Length (35mm Equivalent)
15.0 mm
Focus Type
Internal
Image Stabilization
No
No
No
Weather Resistance
No
No
Performance
Max Magnification
0.1x
0.4x
Min Focus Distance
250 mm / 9.84 in
280 mm / 11.02 in
1150 mm / 45.28 in
Production
Accessory
Lens Hood: Integrated hood (supplied)
Lens hood included
Lens hood included
Debut
2013-12-06
2016-09-08
2020-07-19
Reviews
Neofiliac score
40%
59%
40%
Pros
- One of the widest rectilinear lens for APS-C
- Reasonable IQ
- Bright f/2.8 aperture
- Great build quality
- Very sharp
- Low distortion
- Very compact for 400mm
- Very affordable
Cons
- Lacks front filter thread
- Lacks weather sealing
- Dark maximum aperture
- Lacks weather sealing
- Poor image quality
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