Compare Sigma 100-400mm F5-6.3 DG OS HSM vs Sigma 18-300 F3.5-6.3 DC Macro vs Pentax-DA 11-18mm F2.8
Construction
Aperture Blades
9 blades
Colors
Black
Black
Form Factor
Super Telephoto Zoom Lens
All-in-One Zoom Lens
Ultra Wide-Angle 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
Motor
Ring-type ultrasonic
Ultrasonic
Optical Formula | Elements
21 elements
Optical Formula | Groups
15 groups
Optical Formula | Special Glass
Four SLD elements groups
4 "F" low dispersion, 1 special low dispersion groups
Dimensions
Filter Diameter
67 mm / 2.64 in
72 mm / 2.83 in
Size | Diameter
86 mm / 3.39 in
Size | Length
182 mm / 7.17 in
Weight
1160 g / 40.99 oz
Function
Angle Of View
24.4° Diagonal | 20.4° Horizontal | 13.7° Vertical (wide) ~ 6.2° Diagonal | 5.2° Horizontal | 3.4° Vertical (tele)
77.4° Diagonal | 67.4° Horizontal | 47.9° Vertical (wide) ~ 5.5° Diagonal | 4.6° Horizontal | 3.1° Vertical (tele)
105.4° Diagonal | 95.0° Horizontal | 72.1° Vertical (wide) ~ 77.4° Diagonal | 67.4° Horizontal | 47.9° Vertical (tele)
Aperture
f/5–6.3 ~ f/22
f/3.5–6.3 ~ f/22
f/2.8
Autofocus
Yes
Yes
Yes
Crop Factor
1.5
1.5
Focal Length
100 mm ~ 400 mm
18 mm ~ 300 mm
11 mm ~ 18 mm
Focal Length (35mm Equivalent)
27.0 mm ~ 450.0 mm
16.5 mm ~ 27.0 mm
Focus Type
Internal
Extending front
Image Stabilization
Yes
Yes
No
Weather Resistance
Yes
No
Zoom Type
External zoom
External zoom (zoom lock available)
External zoom
Performance
Max Magnification
0.26x
3x
Min Focus Distance
160 mm / 6.30 in
390 mm / 15.35 in
Production
Accessory
Lens Hood: LH770-04 (supplied)
Lens hood included
Lens hood included
Debut
2017-02-21
2014-09-12
2017-10-26
Made In
Japan
Japan
Reviews
Neofiliac score
65%
55%
40%
Pros
- Excellent image quality
- Optically stabilized
- Weather-sealed
- Zoom lock prevents zoom creep
- Very versatile focal range
- Optically stabilized
- Zoom lock prevents zoom creep
- High maximum magnification
- Good build quality
- Good center resolution
Cons
- Dark maximum aperture
- Not the best flare resistance
- All-in-one lenses tend to offer lower IQ
- Lacks weather sealing
- Lacks front filter thread
- Expensive for an APS-C wide-angle zoom
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