Compare Pentax DA 21mm F3.2 vs Pentax-DA* 16-50mm F2.8 vs Pentax-DA 11-18mm F2.8
Construction
Aperture Blades
7 blades, Rounded aperture diaphragm
9 blades
Colors
Black, Silver
Black
Form Factor
Wide-Angle Prime Lens
Standard Zoom Lens
Ultra Wide-Angle Zoom Lens
Image Size
APS-C
APS-C
APS-C
Lens Barrel
Distance scale, DoF scale
Distance scale
Lens Mount
Pentax K-mount
Pentax K-mount
Pentax K-mount
Material
Magnesium alloy
Motor
Screw drive from camera
Stepper motor
Optical Formula | Elements
8 elements
16 elements
Optical Formula | Groups
5 groups
10 groups
Optical Formula | Special Glass
High-grade multi-layer HD (High Definition) Coating groups
ED + anomalous glass + aspherical elements, HD coating groups
Dimensions
Filter Diameter
49 mm / 1.93 in
77 mm / 3.03 in
Size | Diameter
63 mm / 2.48 in
84 mm / 3.31 in
Size | Length
25 mm / 0.98 in
117 mm / 4.61 in
Weight
134 g / 4.73 oz
712 g / 25.16 oz
Function
Angle Of View
69.0° Diagonal | 59.5° Horizontal | 41.7° Vertical
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical (wide) ~ 32.2° Diagonal | 27.0° Horizontal | 18.2° Vertical (tele)
105.4° Diagonal | 95.0° Horizontal | 72.1° Vertical (wide) ~ 77.4° Diagonal | 67.4° Horizontal | 47.9° Vertical (tele)
Aperture
f/3.2 ~ f/22
f/2.8 ~ f/22
f/2.8
Autofocus
Yes
Yes
Yes
Crop Factor
1.5
1.5
1.5
Focal Length
21 mm
16 mm ~ 50 mm
11 mm ~ 18 mm
Focal Length (35mm Equivalent)
31.5 mm
24.0 mm ~ 75.0 mm
16.5 mm ~ 27.0 mm
Focus Type
Internal
Image Stabilization
No
No
No
Weather Resistance
Yes
Zoom Type
External zoom
External zoom
Performance
Max Magnification
0.17x
0.24x
Min Focus Distance
200 mm / 7.87 in
300 mm / 11.81 in
Production
Accessory
Lens Hood: MH-RBB43 (supplied)
Lens Hood: PH-RBN77 (sold separately)
Lens hood included
Debut
2013-08-27
2021-07-14
2017-10-26
Reviews
Neofiliac score
59%
40%
40%
Pros
- Very compact
- Very light
- Weather-sealed
- Solid build quality
- Good build quality
- Good center resolution
Cons
- Dark aperture
- A bit expensive for an f/3.2 pancake
- A bit weak on IQ
- Exterior designed like a 1990's lens
- External zoom without zoom lock
- Lens hood not included
- Expensive for APS-C
- Lacks front filter thread
- Expensive for an APS-C wide-angle zoom
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