Compare Sigma 105mm 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
Short Telephoto Prime Lens
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Image Size
Full-Frame
Full-Frame
Full-Frame
Lens Barrel
Tripod collar, Distance scale, DoF scale
Distance scale
Lens Mount
Canon EF-mount, Nikon F-mount, Sigma SA-mount, Sony E-mount
Canon EF-mount, Nikon F-mount, Sigma SA-mount, Sony E-mount, Leica L-mount
Sony E-mount
Material
Magnesium alloy
Motor
Ring-type ultrasonic
Ring-type ultrasonic
Ring-type ultrasonic
Optical Formula | Elements
17 elements
15 elements
13 elements
Optical Formula | Groups
12 groups
11 groups
11 groups
Optical Formula | Special Glass
3 FLD glass elements, 2 SLD glass elements, and 1 aspherical lens element groups
Two FLD, five SLD elements + Super Multi-Layer coating groups
3 super-low-dispersion + 2 ED elements groups
Dimensions
Filter Diameter
105 mm / 4.13 in
62 mm / 2.44 in
Size | Diameter
116 mm / 4.57 in
91 mm / 3.58 in
73 mm / 2.87 in
Size | Length
132 mm / 5.20 in
130 mm / 5.12 in
82 mm / 3.23 in
Weight
1645 g / 58.13 oz
950 g / 33.57 oz
464 g / 16.40 oz
Function
Angle Of View
23.3° Diagonal | 19.5° Horizontal | 13.0° 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
105 mm
20 mm
20 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
Yes
No
No
Performance
Max Magnification
0.12x
0.14x
0.1x
Min Focus Distance
1000 mm / 39.37 in
300 mm / 11.81 in
280 mm / 11.02 in
Production
Accessory
Lens hood included
Lens hood included
Lens Hood: BH-623 (supplied)
Debut
2018-02-27
2015-10-16
2018-02-22
Made In
Japan
Japan
Reviews
Neofiliac score
74%
55%
59%
Pros
- Bokeh monster
- Exceptional sharpness
- Bright maximum aperture
- Weather-sealed
- Comes with a tripod collar
- High level of resolution
- Bright maximum aperture
- The best image quality from Tokina
- Quite light
Cons
- Ridiculously large and heavy for a portrait lens
- Large and heavy
- Lacks front filter thread
- Lacks weather sealing
- Lacks weather sealing
- Lacks extra features
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