Compare Sigma 24-70mm F2.8 DG OS HSM vs Sigma 18-35mm F1.8 DC HSM vs Pentax-DA* 16-50mm F2.8
Construction
Aperture Blades
9 blades
9 blades, Rounded diaphragm
9 blades
Colors
Black
Black
Form Factor
Standard Zoom Lens
Zoom Lens
Standard Zoom Lens
Image Size
Full-Frame
APS-C
APS-C
Lens Barrel
Distance scale
Distance scale
Lens Mount
Canon EF-mount, Nikon F-mount, Sigma SA-mount
Canon EF-mount, Nikon F-mount, Pentax K-mount, Sigma SA-mount, Sony A-mount
Pentax K-mount
Material
Metal
Magnesium alloy
Motor
Ring-type ultrasonic
Ring-type ultrasonic
Stepper motor
Optical Formula | Elements
19 elements
17 elements
16 elements
Optical Formula | Groups
14 groups
12 groups
10 groups
Optical Formula | Special Glass
Three HLD and four aspherical elements groups
5 SLD glass elements, 4 glassmold aspherical elements groups
ED + anomalous glass + aspherical elements, HD coating groups
Dimensions
Filter Diameter
82 mm / 3.23 in
72 mm / 2.83 in
77 mm / 3.03 in
Size | Diameter
88 mm / 3.46 in
78 mm / 3.07 in
84 mm / 3.31 in
Size | Length
108 mm / 4.25 in
121 mm / 4.76 in
117 mm / 4.61 in
Weight
810 g / 28.62 oz
712 g / 25.16 oz
Function
Angle Of View
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical (wide) ~ 34.4° Diagonal | 28.8° Horizontal | 19.5° Vertical (tele)
77.4° Diagonal | 67.4° Horizontal | 47.9° Vertical (wide) ~ 44.8° Diagonal | 37.8° Horizontal | 25.8° Vertical (tele)
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical (wide) ~ 32.2° Diagonal | 27.0° Horizontal | 18.2° Vertical (tele)
Aperture
f/2.8 ~ f/22
f/1.8 ~ f/16
f/2.8 ~ f/22
Autofocus
Yes
Yes
Yes
Crop Factor
1.5
1.5
Focal Length
24 mm ~ 70 mm
18 mm ~ 35 mm
16 mm ~ 50 mm
Focal Length (35mm Equivalent)
27.0 mm ~ 52.5 mm
24.0 mm ~ 75.0 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
Yes
No
No
Weather Resistance
Yes
Yes
Zoom Type
External zoom
Internal zoom
External zoom
Performance
Max Magnification
0.21x
0.23x
0.24x
Min Focus Distance
370 mm / 14.57 in
280 mm / 11.02 in
300 mm / 11.81 in
Production
Accessory
Lens Hood: LH876-04 (supplied)
Lens Hood: LH780-03 (supplied)
Lens Hood: PH-RBN77 (sold separately)
Debut
2017-02-21
2013-04-18
2021-07-14
Made In
Japan
Japan
Reviews
Neofiliac score
83%
65%
40%
Pros
- Optically stabilized
- Weather-sealed
- Solid build quality
- Internal zoom
- High levels of resolution
- Weather-sealed
- Solid build quality
Cons
- External zoom without zoom lock
- Not the best Art lens
- Rather large and heavy for an APS-C lens
- Exterior designed like a 1990's lens
- External zoom without zoom lock
- Lens hood not included
- Expensive for APS-C
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