Compare Sigma 20mm F1.4 DG HSM vs Tokina Firin 20mm F2 AF vs Tokina 85mm F1.8 atx-m
Construction
Aperture Blades
9 blades, Rounded 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
Distance scale
Lens Mount
Canon EF-mount, Nikon F-mount, Sigma SA-mount, Sony E-mount, Leica L-mount
Sony E-mount
Sony E-mount
Motor
Ring-type ultrasonic
Ring-type ultrasonic
Stepper motor
Optical Formula | Elements
15 elements
13 elements
10 elements
Optical Formula | Groups
11 groups
11 groups
7 groups
Optical Formula | Special Glass
Two FLD, five SLD elements + Super Multi-Layer coating 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
91 mm / 3.58 in
73 mm / 2.87 in
93 mm / 3.66 in
Size | Length
130 mm / 5.12 in
82 mm / 3.23 in
80 mm / 3.15 in
Weight
950 g / 33.57 oz
464 g / 16.40 oz
645 g / 22.79 oz
Function
Angle Of View
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
28.6° Diagonal | 23.9° Horizontal | 16.1° Vertical
Aperture
f/1.4 ~ f/16
f/2 ~ f/22
f/1.8 ~ f/16
Autofocus
Yes
Yes
Focal Length
20 mm
20 mm
85 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
No
No
Performance
Max Magnification
0.14x
0.1x
0.13x
Min Focus Distance
300 mm / 11.81 in
280 mm / 11.02 in
800 mm / 31.50 in
Production
Accessory
Lens hood included
Lens Hood: BH-623 (supplied)
Lens hood included
Debut
2015-10-16
2018-02-22
2020-01-17
Made In
Japan
Reviews
Neofiliac score
55%
59%
50%
Pros
- High level of resolution
- Bright maximum aperture
- The best image quality from Tokina
- Quite light
- Good build quality
- Fast and silent AF
- Good rendering
Cons
- Large and heavy
- Lacks front filter thread
- Lacks weather sealing
- Lacks weather sealing
- Lacks extra features
- Large and heavy for what it is
- Lacks weather sealing
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