Compare Pentax-DA 11-18mm F2.8 vs Pentax-D FA* 85mm F1.4 vs Pentax-D FA* 70-200mm F2.8
Construction
Aperture Blades
9 blades
9 blades, Rounded (f/2.8-5.6)
Colors
Black
Black or Silver
Form Factor
Ultra Wide-Angle Zoom Lens
Short Telephoto Prime Lens
Telephoto Zoom Lens
Image Size
APS-C
Full-Frame
Full-Frame
Lens Barrel
Distance scale
Distance scale
Focus limiter, Tripod collar, Distance scale
Lens Mount
Pentax K-mount
Pentax K-mount
Pentax K-mount
Motor
Ring-type ultrasonic
Optical Formula | Elements
12 elements
19 elements
Optical Formula | Groups
10 groups
16 groups
Optical Formula | Special Glass
1 aspherical + 3 Super ED elements, HD coating groups
HD, AB, Super Protect coatings groups
Dimensions
Filter Diameter
82 mm / 3.23 in
77 mm / 3.03 in
Size | Diameter
95 mm / 3.74 in
92 mm / 3.62 in
Size | Length
124 mm / 4.88 in
203 mm / 7.99 in
Weight
1255 g / 44.35 oz
1755 g / 62.01 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)
28.6° Diagonal | 23.9° Horizontal | 16.1° Vertical
34.4° Diagonal | 28.8° Horizontal | 19.5° Vertical (wide) ~ 12.4° Diagonal | 10.3° Horizontal | 6.9° Vertical (tele)
Aperture
f/2.8
f/1.4 ~ f/16
f/2.8 ~ f/22
Autofocus
Yes
Yes
Yes
Crop Factor
1.5
Focal Length
11 mm ~ 18 mm
85 mm
70 mm ~ 200 mm
Focal Length (35mm Equivalent)
16.5 mm ~ 27.0 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
Yes
Yes
Zoom Type
External zoom
External zoom (zoom lock available)
Performance
Max Magnification
0.12x
0.13x
Min Focus Distance
850 mm / 33.46 in
1200 mm / 47.24 in
Production
Accessory
Lens hood included
Lens hood included
Lens Hood: PH-RBM77 (supplied)
Debut
2017-10-26
2020-05-27
2015-02-04
Reviews
Neofiliac score
40%
68%
40%
Pros
- Good build quality
- Good center resolution
- Bright maximum aperture
- Weather-sealed
- Premium design and construction
- Superb image quality
- Zoom lock prevents zoom creep
- Weather-sealed
- Comes with a tripod collar
- Very nice construction
- Well priced
Cons
- Lacks front filter thread
- Expensive for an APS-C wide-angle zoom
- Large diameter
- On the heavy side
- Large and heavy
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