Compare Pentax DA 15mm F4 vs Pentax-DA 10-17mm F3.5-4.5 vs PENTAX-D FA 15-30mm F2.8
Construction
Aperture Blades
9 blades, Rounded aperture diaphragm
6 blades
9 blades
Colors
Black, Silver
Black
Black
Form Factor
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Zoom Lens
Ultra Wide-Angle Zoom Lens
Image Size
APS-C
APS-C
Full-Frame
Lens Barrel
Distance scale, DoF scale
Distance scale
Distance scale
Lens Mount
Pentax K-mount
Pentax K-mount
Pentax K-mount
Motor
Screw drive from camera
Screw drive from camera
Ultrasonic
Optical Formula | Elements
8 elements
10 elements
18 elements
Optical Formula | Groups
6 groups
8 groups
13 groups
Optical Formula | Special Glass
1 Hybrid aspherical element, 1 ED glass element, High-grade multi-layer HD (High Definition) Coating groups
ED element, HD + Super Protective coatings groups
Three ED and aspherical elements + HD and SP coatings groups
Dimensions
Filter Diameter
49 mm / 1.93 in
Size | Diameter
63 mm / 2.48 in
68 mm / 2.68 in
99 mm / 3.90 in
Size | Length
40 mm / 1.57 in
70 mm / 2.76 in
144 mm / 5.67 in
Weight
189 g / 6.68 oz
317 g / 11.20 oz
1040 g / 36.75 oz
Function
Angle Of View
87.8° Diagonal | 77.3° Horizontal | 56.1° Vertical
180° Diagonal (wide) ~ 100° Diagonal
110.6° Diagonal | 100.4° Horizontal | 77.3° Vertical (wide) ~ 71.6° Diagonal | 61.9° Horizontal | 43.6° Vertical (tele)
Aperture
f/4 ~ f/22
f/3.5–4.5 ~ f/22–32
f/2.8 ~ f/22
Autofocus
Yes
Yes
Yes
Crop Factor
1.5
1.5
Focal Length
15 mm
10 mm ~ 17 mm
15 mm ~ 30 mm
Focal Length (35mm Equivalent)
22.5 mm
15.0 mm ~ 25.5 mm
Focus Type
Unit
Internal
Internal
Image Stabilization
No
No
Weather Resistance
No
Yes
Zoom Type
External zoom
Performance
Max Magnification
0.15x
0.39x
0.2x
Min Focus Distance
180 mm / 7.09 in
140 mm / 5.51 in
280 mm / 11.02 in
Production
Accessory
Lens Hood: built-in hood (supplied)
Lens hood included
Lens hood included
Debut
2013-08-27
2019-07-08
2016-02-17
Reviews
Neofiliac score
59%
31%
31%
Pros
- Exceptionally light and compact
- Good weather resistance
- Ultra-wide fisheye offers unique creative possibilities
- Constant f/2.8 aperture
- Great optical performance
- Weather-sealed
- Beautifully constructed
Cons
- Not the highest IQ level
- Lacks front filter thread
- External zoom without zoom lock
- Lacks weather sealing
- Not the strongest optical performance
- Rather long
- On the heavy side
- Lacks front filter thread
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