Compare Pentax-DA 11-18mm F2.8 vs Pentax-DA* 16-50mm F2.8 vs Pentax-DA 55-300mm F4.5-6.3
Construction
Aperture Blades
9 blades
9 blades, Rounded blades
Colors
Black
Black
Form Factor
Ultra Wide-Angle Zoom Lens
Standard Zoom Lens
Super Telephoto Zoom Lens
Image Size
APS-C
APS-C
APS-C
Lens Barrel
Distance scale
Lens Mount
Pentax K-mount
Pentax K-mount
Pentax K-mount
Material
Magnesium alloy
Motor
Stepper motor
Stepper motor
Optical Formula | Elements
16 elements
14 elements
Optical Formula | Groups
10 groups
11 groups
Optical Formula | Special Glass
ED + anomalous glass + aspherical elements, HD coating groups
ED elements + HD and SP coatings groups
Dimensions
Filter Diameter
77 mm / 3.03 in
58 mm / 2.28 in
Size | Diameter
84 mm / 3.31 in
77 mm / 3.03 in
Size | Length
117 mm / 4.61 in
89 mm / 3.50 in
Weight
712 g / 25.16 oz
471 g / 16.64 oz
Function
Angle Of View
105.4° Diagonal | 95.0° Horizontal | 72.1° Vertical (wide) ~ 77.4° Diagonal | 67.4° Horizontal | 47.9° Vertical (tele)
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical (wide) ~ 32.2° Diagonal | 27.0° Horizontal | 18.2° Vertical (tele)
29.4° Diagonal | 24.6° Horizontal | 16.6° Vertical (wide) ~ 5.5° Diagonal | 4.6° Horizontal | 3.1° Vertical (tele)
Aperture
f/2.8
f/2.8 ~ f/22
f/4.5–6.3 ~ f/22–32
Autofocus
Yes
Yes
Yes
Crop Factor
1.5
1.5
1.5
Focal Length
11 mm ~ 18 mm
16 mm ~ 50 mm
55 mm ~ 300 mm
Focal Length (35mm Equivalent)
16.5 mm ~ 27.0 mm
24.0 mm ~ 75.0 mm
82.5 mm ~ 450.0 mm
Focus Type
Internal
Extending front
Image Stabilization
No
No
No
Weather Resistance
Yes
Yes
Zoom Type
External zoom
External zoom
External zoom
Performance
Max Magnification
0.24x
0.3x
Min Focus Distance
300 mm / 11.81 in
950 mm / 37.40 in
Production
Accessory
Lens hood included
Lens Hood: PH-RBN77 (sold separately)
Lens Hood: PH-RBK58 (supplied)
Debut
2017-10-26
2021-07-14
2016-06-08
Reviews
Neofiliac score
40%
40%
50%
Pros
- Good build quality
- Good center resolution
- Weather-sealed
- Solid build quality
- Weather-sealed
- Very affordable for the reach it provides
Cons
- Lacks front filter thread
- Expensive for an APS-C wide-angle zoom
- Exterior designed like a 1990's lens
- External zoom without zoom lock
- Lens hood not included
- Expensive for APS-C
- Dark maximum aperture
- External zoom without zoom lock
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