Compare Sigma 18-200mm F3.5-6.3 DC Macro OS HSM vs Pentax-DA 55-300mm F4.5-6.3
Construction
Aperture Blades
7 blades, Rounded diaphragm
9 blades, Rounded blades
Colors
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
16 elements
14 elements
Optical Formula | Groups
13 groups
11 groups
Optical Formula | Special Glass
SLD glass elements, Double-sided aspheric lenses groups
ED elements + HD and SP coatings groups
Dimensions
Filter Diameter
62 mm / 2.44 in
58 mm / 2.28 in
Size | Diameter
71 mm / 2.80 in
77 mm / 3.03 in
Size | Length
86 mm / 3.39 in
89 mm / 3.50 in
Weight
430 g / 15.19 oz
471 g / 16.64 oz
Function
Angle Of View
77.4° Diagonal | 67.4° Horizontal | 47.9° Vertical (wide) ~ 8.3° Diagonal | 6.9° Horizontal | 4.6° 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 ~ 200 mm
55 mm ~ 300 mm
Focal Length (35mm Equivalent)
27.0 mm ~ 300.0 mm
82.5 mm ~ 450.0 mm
Focus Type
Internal
Extending front
Image Stabilization
Yes
No
Weather Resistance
Yes
Zoom Type
External zoom (zoom lock available)
External zoom
Performance
Max Magnification
0.33x
0.3x
Min Focus Distance
390 mm / 15.35 in
950 mm / 37.40 in
Production
Accessory
Lens Hood: PH-RBK58 (supplied)
Debut
2014-01-06
2016-06-08
Made In
Japan
Reviews
Neofiliac score
55%
50%
Pros
- Optically stabilized
- Zoom lock prevents zoom creep
- Superb build quality
- Very useful focal range
- Weather-sealed
- Very affordable for the reach it provides
Cons
- All-in-one lenses tend to offer lower IQ
- Dark maximum aperture
- External zoom without zoom lock
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