Compare Sigma 24mm F1.4 DG HSM vs Sigma 20mm F1.4 DG HSM vs Tokina Firin 20mm F2 AF
Construction
Aperture Blades
9 blades
9 blades, Rounded blades
9 blades
Colors
Black
Black
Black
Form Factor
Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Image Size
Full-Frame
Full-Frame
Full-Frame
Lens Barrel
Distance scale
Distance scale
Lens Mount
Canon EF-mount, Nikon F-mount, Sigma SA-mount, Sony E-mount, Leica L-mount
Canon EF-mount, Nikon F-mount, Sigma SA-mount, Sony E-mount, Leica L-mount
Sony E-mount
Motor
Ultrasonic
Ring-type ultrasonic
Ring-type ultrasonic
Optical Formula | Elements
15 elements
15 elements
13 elements
Optical Formula | Groups
11 groups
11 groups
11 groups
Optical Formula | Special Glass
FLD and SLD elements groups
Two FLD, five SLD elements + Super Multi-Layer coating groups
3 super-low-dispersion + 2 ED elements groups
Dimensions
Filter Diameter
77 mm / 3.03 in
62 mm / 2.44 in
Size | Diameter
85 mm / 3.35 in
91 mm / 3.58 in
73 mm / 2.87 in
Size | Length
90 mm / 3.54 in
130 mm / 5.12 in
82 mm / 3.23 in
Weight
665 g / 23.50 oz
950 g / 33.57 oz
464 g / 16.40 oz
Function
Angle Of View
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical
Aperture
f/1.4 ~ f/16
f/1.4 ~ f/16
f/2 ~ f/22
Autofocus
Yes
Yes
Focal Length
24 mm
20 mm
20 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
No
No
Performance
Max Magnification
0.14x
0.1x
Min Focus Distance
250 mm / 9.84 in
300 mm / 11.81 in
280 mm / 11.02 in
Production
Accessory
Lens hood included
Lens Hood: BH-623 (supplied)
Debut
2015-02-10
2015-10-16
2018-02-22
Made In
Japan
Japan
Reviews
Neofiliac score
83%
55%
59%
Pros
- High level of resolution
- Bright maximum aperture
- Beautifully made
- High level of resolution
- Bright maximum aperture
- The best image quality from Tokina
- Quite light
Cons
- Surpassed by newer lenses
- Large and heavy
- Lacks front filter thread
- Lacks weather sealing
- Lacks weather sealing
- Lacks extra features
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