Compare Pentax DA 16-85mm F3.5-5.6 vs Pentax DA 50mm F1.8 vs Pentax-FA 43mm F1.9
Construction
Aperture Blades
7 blades, Rounded aperture
8 blades
8 blades
Colors
Black
Black
Black, silver
Form Factor
Standard Zoom Lens
Normal Prime Lens
Normal Prime Lens
Image Size
APS-C
Full-Frame
Full-Frame
Lens Barrel
Physical aperture ring
Physical aperture ring, Distance scale, DoF scale
Lens Mount
Pentax K-mount
Pentax K-mount
Pentax K-mount
Material
Aluminum
Motor
Ultrasonic
Screw drive from camera
Optical Formula | Elements
16 elements
6 elements
7 elements
Optical Formula | Groups
12 groups
5 groups
6 groups
Optical Formula | Special Glass
HD, Super Protect coatings groups
HD + Super Protect coatings groups
Dimensions
Filter Diameter
72 mm / 2.83 in
52 mm / 2.05 in
49 mm / 1.93 in
Size | Diameter
78 mm / 3.07 in
63 mm / 2.48 in
64 mm / 2.52 in
Size | Length
94 mm / 3.70 in
39 mm / 1.54 in
27 mm / 1.06 in
Weight
488 g / 17.24 oz
122 g / 4.31 oz
155 g / 5.48 oz
Function
Angle Of View
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical (wide) ~ 19.3° Diagonal | 16.1° Horizontal | 10.8° Vertical (tele)
46.8° Diagonal | 39.6° Horizontal | 27.0° Vertical
53.4° Diagonal | 45.4° Horizontal | 31.2° Vertical
Aperture
f/3.5–5.6 ~ f/22–38
f/1.8 ~ f/22
f/1.9 ~ f/22
Autofocus
Yes
Yes
Yes
Crop Factor
1.5
Focal Length
16 mm ~ 85 mm
50 mm
43 mm
Focal Length (35mm Equivalent)
24.0 mm ~ 127.5 mm
Focus Type
Extending front
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
Yes
No
No
Zoom Type
External zoom
Performance
Max Magnification
0.26x
0.12x
Min Focus Distance
350 mm / 13.78 in
450 mm / 17.72 in
Production
Accessory
Lens Hood: PR-RBA72 (supplied)
Lens Hood: RH-RA (sold separately)
Lens hood included
Debut
2014-10-29
2012-05-21
2021-02-24
Reviews
Neofiliac score
50%
59%
68%
Pros
- Weather-sealed
- Very compact and lightweight
- Comes with physical aperture ring
- Compact and lightweight
- Comes with physical aperture ring
Cons
- Not the best image quality
- Not the best build from Pentax
- External zoom without zoom lock
- Lens hood not included
- Lacks weather sealing
- Basic construction
- Not the strongest in IQ
- Lacks weather sealing
- Expensive for a pancake lens
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