Compare Sigma 18-35mm F1.8 DC HSM vs Sigma 18-300 F3.5-6.3 DC Macro vs Pentax-DA 11-18mm F2.8
Construction
Aperture Blades
9 blades, Rounded diaphragm
Colors
Black
Form Factor
Zoom Lens
All-in-One Zoom Lens
Ultra Wide-Angle Zoom Lens
Image Size
APS-C
APS-C
APS-C
Lens Barrel
Distance scale
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, Pentax K-mount, Sigma SA-mount, Sony A-mount
Pentax K-mount
Motor
Ring-type ultrasonic
Ultrasonic
Optical Formula | Elements
17 elements
Optical Formula | Groups
12 groups
Optical Formula | Special Glass
5 SLD glass elements, 4 glassmold aspherical elements groups
4 "F" low dispersion, 1 special low dispersion groups
Dimensions
Filter Diameter
72 mm / 2.83 in
72 mm / 2.83 in
Size | Diameter
78 mm / 3.07 in
Size | Length
121 mm / 4.76 in
Weight
810 g / 28.62 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)
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/1.8 ~ f/16
f/3.5–6.3 ~ f/22
f/2.8
Autofocus
Yes
Yes
Yes
Crop Factor
1.5
1.5
1.5
Focal Length
18 mm ~ 35 mm
18 mm ~ 300 mm
11 mm ~ 18 mm
Focal Length (35mm Equivalent)
27.0 mm ~ 52.5 mm
27.0 mm ~ 450.0 mm
16.5 mm ~ 27.0 mm
Focus Type
Internal
Extending front
Image Stabilization
No
Yes
No
Weather Resistance
No
Zoom Type
Internal zoom
External zoom (zoom lock available)
External zoom
Performance
Max Magnification
0.23x
3x
Min Focus Distance
280 mm / 11.02 in
390 mm / 15.35 in
Production
Accessory
Lens Hood: LH780-03 (supplied)
Lens hood included
Lens hood included
Debut
2013-04-18
2014-09-12
2017-10-26
Made In
Japan
Japan
Reviews
Neofiliac score
65%
55%
40%
Pros
- Internal zoom
- High levels of resolution
- Very versatile focal range
- Optically stabilized
- Zoom lock prevents zoom creep
- High maximum magnification
- Good build quality
- Good center resolution
Cons
- Rather large and heavy for an APS-C lens
- 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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