Compare Samyang 12mm F2.8 ED AS NCS Fisheye vs Tokina Firin 20mm F2 MF vs Tokina 85mm F1.8 atx-m
Construction
Aperture Blades
7 blades, Circular blades
9 blades
9 blades
Colors
Black
Black
Form Factor
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Short Telephoto Prime Lens
Image Size
Full-Frame
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring, Distance scale
Physical aperture ring, Distance scale, DoF scale
Lens Mount
Canon EF-mount, Nikon F-mount, Pentax K-mount, Sony A-mount, Sony E-mount
Sony E-mount
Sony E-mount
Motor
Stepper motor
Optical Formula | Elements
12 elements
13 elements
10 elements
Optical Formula | Groups
8 groups
11 groups
7 groups
Optical Formula | Special Glass
2 aspherical, 3 ED, nano coating system groups
Multi-layer coatings groups
1 SD element + Multi-coating groups
Dimensions
Filter Diameter
62 mm / 2.44 in
72 mm / 2.83 in
Size | Diameter
77 mm / 3.03 in
62 mm / 2.44 in
93 mm / 3.66 in
Size | Length
73 mm / 2.87 in
69 mm / 2.72 in
80 mm / 3.15 in
Weight
515 g / 18.20 oz
490 g / 17.31 oz
645 g / 22.79 oz
Function
Angle Of View
180° Diagonal (fisheye)
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
No
Yes
Focal Length
12 mm
20 mm
85 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
No
No
Performance
Max Magnification
0.1x
0.13x
Min Focus Distance
200 mm / 7.87 in
280 mm / 11.02 in
800 mm / 31.50 in
Production
Accessory
Lens hood included
Lens hood included
Lens hood included
Debut
2014-11-01
2016-09-08
2020-01-17
Reviews
Neofiliac score
40%
59%
50%
Pros
- 180° FOV
- Reasonably good sunstar
- Great build quality
- Very sharp
- Low distortion
- Good build quality
- Fast and silent AF
- Good rendering
Cons
- Lacks front filter thread
- Lacks weather sealing
- Not the sharpest
- Lacks weather sealing
- Large and heavy for what it is
- Lacks weather sealing
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