Compare Sigma 18-35mm F1.8 DC HSM vs Tokina AT-X 14-20mm F2 Pro vs Tokina atx-i 17-35mm F4
Variants
EF-mount
F-mount
Construction
Aperture Blades
9 blades, Rounded diaphragm
9 blades
9
Colors
Black
Black
Form Factor
Zoom Lens
Wide-Angle Zoom Lens
Image Size
APS-C
APS-C
Full-frame
Lens Barrel
Distance scale
Distance scale
Lens Mount
Canon EF-mount, Nikon F-mount, Pentax K-mount, Sigma SA-mount, Sony A-mount
Canon EF-mount, Nikon F-mount
Canon EF-mount, Nikon F-mount
Motor
Ring-type ultrasonic
Silent-Drive focusing Motor (SD-M)
Optical Formula | Elements
17 elements
13 elements
13 elements
Optical Formula | Groups
12 groups
11 groups
12 groups
Optical Formula | Special Glass
5 SLD glass elements, 4 glassmold aspherical elements groups
2 super low dispersion + multilayer film coating groups
Dimensions
Filter Diameter
72 mm / 2.83 in
82 mm / 3.23 in
82 mm
Size | Diameter
78 mm / 3.07 in
89 mm / 3.50 in
89 mm
Size | Length
121 mm / 4.76 in
106 mm / 4.17 in
Weight
810 g / 28.62 oz
725 g / 25.62 oz
Function
Angle Of View
77.4° Diagonal | 67.4° Horizontal | 47.9° Vertical (wide) ~ 44.8° Diagonal | 37.8° Horizontal | 25.8° Vertical (tele)
91.7° Diagonal | 81.2° Horizontal | 59.5° Vertical (wide) ~ 71.6° Diagonal | 61.9° Horizontal | 43.6° Vertical (tele)
104°-64°
Aperture
f/1.8 ~ f/16
f/2 ~ f/22
F/4 - f/22
Autofocus
Yes
Yes
Crop Factor
1.5
1.5
Focal Length
18 mm ~ 35 mm
14 mm ~ 20 mm
17-35 mm
Focal Length (35mm Equivalent)
27.0 mm ~ 52.5 mm
21.0 mm ~ 30.0 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
Weather Resistance
No
Zoom Type
Internal zoom
Internal zoom
Internal Zoom
Performance
Max Magnification
0.23x
0.12x
1:4.82
Min Focus Distance
280 mm / 11.02 in
280 mm / 11.02 in
0.28 m
Production
Accessory
Lens Hood: LH780-03 (supplied)
Lens Hood: BH-823 (supplied)
Lens Hood: BH-821
Availability
2020-12-11
Debut
2013-04-18
2015-12-28
2020-11-20
Made In
Japan
Japan
Reviews
Neofiliac score
65%
50%
Pros
- Internal zoom
- High levels of resolution
- Internal zoom
- Good image quality
Cons
- Rather large and heavy for an APS-C lens
- Lacks weather sealing
- Very large and heavy for an APS-C lens
- Not as well built as some alternatives
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