Compare Sigma 18-300 F3.5-6.3 DC Macro vs Pentax-D FA 70-210mm F4 vs Pentax-DA 55-300mm F4.5-6.3
Construction
Aperture Blades
9 blades
9 blades, Rounded blades
Colors
Black
Black
Black
Form Factor
All-in-One Zoom Lens
Super Telephoto Zoom Lens
Super Telephoto Zoom Lens
Image Size
APS-C
APS-C
APS-C
Lens Barrel
Distance scale
Focus limiter, 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
Material
Magnesium alloy
Motor
Ultrasonic
Ring-type ultrasonic
Stepper motor
Optical Formula | Elements
20 elements
14 elements
Optical Formula | Groups
14 groups
11 groups
Optical Formula | Special Glass
4 "F" low dispersion, 1 special low dispersion groups
2 anomalous dispersion and 3 ED elements + HD coating groups
ED elements + HD and SP coatings groups
Dimensions
Filter Diameter
72 mm / 2.83 in
67 mm / 2.64 in
58 mm / 2.28 in
Size | Diameter
79 mm / 3.11 in
77 mm / 3.03 in
Size | Length
175 mm / 6.89 in
89 mm / 3.50 in
Weight
819 g / 28.94 oz
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)
23.3° Diagonal | 19.5° Horizontal | 13.0° Vertical (wide) ~ 7.9° Diagonal | 6.5° Horizontal | 4.4° 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 ~ f/32
f/4.5–6.3 ~ f/22–32
Autofocus
Yes
Yes
Yes
Crop Factor
1.5
1.5
1.5
Focal Length
18 mm ~ 300 mm
70 mm ~ 210 mm
55 mm ~ 300 mm
Focal Length (35mm Equivalent)
27.0 mm ~ 450.0 mm
105.0 mm ~ 315.0 mm
82.5 mm ~ 450.0 mm
Focus Type
Extending front
Internal
Extending front
Image Stabilization
Yes
No
No
Weather Resistance
No
Yes
Yes
Zoom Type
External zoom (zoom lock available)
Internal zoom
External zoom
Performance
Max Magnification
3x
0.32x
0.3x
Min Focus Distance
390 mm / 15.35 in
950 mm / 37.40 in
950 mm / 37.40 in
Production
Accessory
Lens hood included
Lens hood included
Lens Hood: PH-RBK58 (supplied)
Debut
2014-09-12
2020-01-22
2016-06-08
Made In
Japan
Reviews
Neofiliac score
55%
31%
50%
Pros
- Very versatile focal range
- Optically stabilized
- Zoom lock prevents zoom creep
- High maximum magnification
- Weather-sealed
- Beautifully built
- Very useful focal range
- 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
- Dark maximum aperture
- External zoom without zoom lock
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