Compare Sigma 18-300 F3.5-6.3 DC Macro vs Pentax DA 15mm F4 vs Pentax-DA 11-18mm F2.8
Construction
Aperture Blades
9 blades, Rounded aperture diaphragm
Colors
Black
Black, Silver
Form Factor
All-in-One Zoom Lens
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Zoom Lens
Image Size
APS-C
APS-C
APS-C
Lens Barrel
Distance scale
Distance scale, DoF scale
Distance scale
Lens Mount
Canon EF-mount, Nikon F-mount, Pentax K-mount, Sigma SA-mount, Sony A-mount
Pentax K-mount
Pentax K-mount
Motor
Ultrasonic
Screw drive from camera
Optical Formula | Elements
8 elements
Optical Formula | Groups
6 groups
Optical Formula | Special Glass
4 "F" low dispersion, 1 special low dispersion groups
1 Hybrid aspherical element, 1 ED glass element, High-grade multi-layer HD (High Definition) Coating groups
Dimensions
Filter Diameter
72 mm / 2.83 in
49 mm / 1.93 in
Size | Diameter
63 mm / 2.48 in
Size | Length
40 mm / 1.57 in
Weight
189 g / 6.68 oz
Function
Angle Of View
77.4° Diagonal | 67.4° Horizontal | 47.9° Vertical (wide) ~ 5.5° Diagonal | 4.6° Horizontal | 3.1° Vertical (tele)
87.8° Diagonal | 77.3° Horizontal | 56.1° Vertical
105.4° Diagonal | 95.0° Horizontal | 72.1° Vertical (wide) ~ 77.4° Diagonal | 67.4° Horizontal | 47.9° Vertical (tele)
Aperture
f/3.5–6.3 ~ f/22
f/4 ~ f/22
f/2.8
Autofocus
Yes
Yes
Yes
Crop Factor
1.5
1.5
1.5
Focal Length
18 mm ~ 300 mm
15 mm
11 mm ~ 18 mm
Focal Length (35mm Equivalent)
27.0 mm ~ 450.0 mm
22.5 mm
16.5 mm ~ 27.0 mm
Focus Type
Extending front
Unit
Image Stabilization
Yes
No
No
Weather Resistance
No
Zoom Type
External zoom (zoom lock available)
External zoom
Performance
Max Magnification
3x
0.15x
Min Focus Distance
390 mm / 15.35 in
180 mm / 7.09 in
Production
Accessory
Lens hood included
Lens Hood: built-in hood (supplied)
Lens hood included
Debut
2014-09-12
2013-08-27
2017-10-26
Made In
Japan
Reviews
Neofiliac score
55%
59%
40%
Pros
- Very versatile focal range
- Optically stabilized
- Zoom lock prevents zoom creep
- High maximum magnification
- Exceptionally light and compact
- Good weather resistance
- Good build quality
- Good center resolution
Cons
- All-in-one lenses tend to offer lower IQ
- Lacks weather sealing
- Not the highest IQ level
- Lacks front filter thread
- Expensive for an APS-C wide-angle zoom
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