Compare Sigma 18-300 F3.5-6.3 DC Macro vs Pentax-DA 55-300mm F4.5-6.3
Construction
Aperture Blades
9 blades, Rounded blades
Colors
Black
Black
Form Factor
All-in-One Zoom Lens
Super Telephoto Zoom Lens
Image Size
APS-C
APS-C
Lens Barrel
Distance scale
Lens Mount
Canon EF-mount, Nikon F-mount, Pentax K-mount, Sigma SA-mount, Sony A-mount
Pentax K-mount
Motor
Ultrasonic
Stepper motor
Optical Formula | Elements
14 elements
Optical Formula | Groups
11 groups
Optical Formula | Special Glass
4 "F" low dispersion, 1 special low dispersion groups
ED elements + HD and SP coatings groups
Dimensions
Filter Diameter
72 mm / 2.83 in
58 mm / 2.28 in
Size | Diameter
77 mm / 3.03 in
Size | Length
89 mm / 3.50 in
Weight
471 g / 16.64 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)
29.4° Diagonal | 24.6° Horizontal | 16.6° Vertical (wide) ~ 5.5° Diagonal | 4.6° Horizontal | 3.1° Vertical (tele)
Aperture
f/3.5–6.3 ~ f/22
f/4.5–6.3 ~ f/22–32
Autofocus
Yes
Yes
Crop Factor
1.5
1.5
Focal Length
18 mm ~ 300 mm
55 mm ~ 300 mm
Focal Length (35mm Equivalent)
27.0 mm ~ 450.0 mm
82.5 mm ~ 450.0 mm
Focus Type
Extending front
Extending front
Image Stabilization
Yes
No
Weather Resistance
No
Yes
Zoom Type
External zoom (zoom lock available)
External zoom
Performance
Max Magnification
3x
0.3x
Min Focus Distance
390 mm / 15.35 in
950 mm / 37.40 in
Production
Accessory
Lens hood included
Lens Hood: PH-RBK58 (supplied)
Debut
2014-09-12
2016-06-08
Made In
Japan
Reviews
Neofiliac score
55%
50%
Pros
- Very versatile focal range
- Optically stabilized
- Zoom lock prevents zoom creep
- High maximum magnification
- Weather-sealed
- Very affordable for the reach it provides
Cons
- All-in-one lenses tend to offer lower IQ
- Lacks weather sealing
- Dark maximum aperture
- External zoom without zoom lock
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