Compare Pentax-D FA 70-210mm F4 vs Fujifilm XC 50-230mm F4.5-6.7 OIS II vs Fujifilm XF 10-24mm F4
Construction
Aperture Blades
9 blades
7 blades, Rounded diaphragm
7 blades, Rounded
Colors
Black
Silver
Form Factor
Super Telephoto Zoom Lens
Super Telephoto Zoom Lens
Zoom Lens
Image Size
APS-C
APS-C
APS-C
Lens Barrel
Focus limiter, Distance scale
Physical aperture ring
Lens Mount
Pentax K-mount
Fujifilm X-mount
Fujifilm X-mount
Material
Magnesium alloy
Composite
Metal barrel, metal mount
Motor
Ring-type ultrasonic
Stepper motor
Stepper motor
Optical Formula | Elements
20 elements
13 elements
14 elements
Optical Formula | Groups
14 groups
10 groups
10 groups
Optical Formula | Special Glass
2 anomalous dispersion and 3 ED elements + HD coating groups
1 aspherical lens, 1 ED glass element groups
4 aspherical elements, 3 extra low dispersion glass elements groups
Dimensions
Filter Diameter
67 mm / 2.64 in
58 mm / 2.28 in
72 mm / 2.83 in
Size | Diameter
79 mm / 3.11 in
70 mm / 2.76 in
78 mm / 3.07 in
Size | Length
175 mm / 6.89 in
111 mm / 4.37 in
87 mm / 3.43 in
Weight
819 g / 28.94 oz
410 g / 14.49 oz
Function
Angle Of View
23.3° Diagonal | 19.5° Horizontal | 13.0° Vertical (wide) ~ 7.9° Diagonal | 6.5° Horizontal | 4.4° Vertical (tele)
32.2° Diagonal | 27.0° Horizontal | 18.2° Vertical (wide) ~ 7.2° Diagonal | 6.0° Horizontal | 4.0° Vertical (tele)
110.6° Diagonal | 100.4° Horizontal | 77.3° Vertical (wide) ~ 62.0° Diagonal | 53.1° Horizontal | 36.9° Vertical (tele)
Aperture
f/4 ~ f/32
f/4.5–6.7 ~ f/22
f/4 ~ f/22
Autofocus
Yes
Yes
Yes
Crop Factor
1.5
1.5
1.5
Focal Length
70 mm ~ 210 mm
50 mm ~ 230 mm
10 mm ~ 24 mm
Focal Length (35mm Equivalent)
105.0 mm ~ 315.0 mm
75.0 mm ~ 345.0 mm
15.0 mm ~ 36.0 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
Yes
Yes
Weather Resistance
Yes
Zoom Type
Internal zoom
External zoom
Internal zoom
Performance
Max Magnification
0.32x
0.2x
0.16x
Min Focus Distance
950 mm / 37.40 in
1100 mm / 43.31 in
240 mm / 9.45 in
Production
Accessory
Lens hood included
Lens hood included
Debut
2020-01-22
2015-01-15
2013-12-18
Reviews
Neofiliac score
31%
62%
62%
Pros
- Weather-sealed
- Beautifully built
- Very useful focal range
- Optically stabilized
- Very useful focal range
- Affordable
- Low distortion
- Good level of sharpness
- Optically stabilized
- Internal zoom
- Comes with physical aperture ring
Cons
- Dark maximum aperture
- Dark and variable maximum aperture
- External zoom without zoom lock
- Not the highest grade of build
- Not really sharp
- Dark maximum aperture
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