Compare Sigma 150-600mm F5-6.3 DG OS HSM Contemporary vs Pentax-DA 20-40mm F2.8-4 vs Pentax-DA 55-300mm F4.5-6.3
Construction
Aperture Blades
9 blades
9 blades, Rounded aperture
9 blades, Rounded blades
Colors
Black
Black, silver
Black
Form Factor
Super Telephoto Zoom Lens
Standard Zoom Lens
Super Telephoto Zoom Lens
Image Size
Full-Frame
APS-C
APS-C
Lens Barrel
Tripod collar, Distance scale
Distance scale, DoF scale
Lens Mount
Canon EF-mount, Nikon F-mount, Sigma SA-mount, Sony A-mount
Pentax K-mount
Pentax K-mount
Material
Composite with metal sealed mount
Aluminium barrel
Motor
Ultrasonic
Micromotor
Stepper motor
Optical Formula | Elements
20 elements
9 elements
14 elements
Optical Formula | Groups
14 groups
8 groups
11 groups
Optical Formula | Special Glass
1 FLD and 2 SLD groups
1 ED glass element, 1 SLD glass element, HD coating groups
ED elements + HD and SP coatings groups
Dimensions
Filter Diameter
95 mm / 3.74 in
55 mm / 2.17 in
58 mm / 2.28 in
Size | Diameter
105 mm / 4.13 in
71 mm / 2.80 in
77 mm / 3.03 in
Size | Length
260 mm / 10.24 in
69 mm / 2.72 in
89 mm / 3.50 in
Weight
283 g / 10.00 oz
471 g / 16.64 oz
Function
Angle Of View
16.4° Diagonal | 13.7° Horizontal | 9.1° Vertical (wide) ~ 4.1° Diagonal | 3.4° Horizontal | 2.3° Vertical (tele)
71.6° Diagonal | 61.9° Horizontal | 43.6° Vertical (wide) ~ 39.7° Diagonal | 33.4° Horizontal | 22.6° Vertical (tele)
29.4° Diagonal | 24.6° Horizontal | 16.6° Vertical (wide) ~ 5.5° Diagonal | 4.6° Horizontal | 3.1° Vertical (tele)
Aperture
f/5–6.3 ~ f/22
f/2.8–4 ~ f/22–32
f/4.5–6.3 ~ f/22–32
Autofocus
Yes
Yes
Yes
Crop Factor
1.5
1.5
Focal Length
150 mm ~ 600 mm
20 mm ~ 40 mm
55 mm ~ 300 mm
Focal Length (35mm Equivalent)
30.0 mm ~ 60.0 mm
82.5 mm ~ 450.0 mm
Focus Type
Internal
Extending front
Image Stabilization
Yes
No
No
Weather Resistance
Yes
Yes
Yes
Zoom Type
External zoom (zoom lock available)
External zoom
External zoom
Performance
Max Magnification
0.20x
0.2x
0.3x
Min Focus Distance
2800 mm / 110.24 in
280 mm / 11.02 in
950 mm / 37.40 in
Production
Accessory
Lens hood included
Lens Hood: MH-RA55 (supplied)
Lens Hood: PH-RBK58 (supplied)
Debut
2014-09-12
2013-11-06
2016-06-08
Made In
Japan
Reviews
Neofiliac score
55%
50%
50%
Pros
- Superb image quality
- Optically stabilized
- Zoom lock prevents zoom creep
- Comes with a tripod collar
- Weather sealed
- Weather-sealed
- Beautiful construction for manual focusing
- Weather-sealed
- Very affordable for the reach it provides
Cons
- Dark maximum aperture
- Large physical size with large diameter and long barrel
- External zoom without zoom lock
- Not the most interesting focal range
- Dark maximum aperture
- External zoom without zoom lock
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