Compare Pentax-D FA 70-210mm F4 vs Fujifilm XF 150-600mm F5.6-8 vs Fujifilm Fujinon MKX 50-135mm T2.9
Construction
Aperture Blades
9 blades
9 blades
Colors
Black
matte silver
Black
Form Factor
Super Telephoto Zoom Lens
Super Telephoto Zoom Lens
Telephoto Zoom Lens
Image Size
APS-C
APS-C
APS-C
Lens Barrel
Focus limiter, Distance scale
Physical aperture ring, Tripod collar
Physical aperture ring, Tripod collar, Distance scale
Lens Mount
Pentax K-mount
Fujifilm X-mount
Fujifilm X-mount
Material
Magnesium alloy
Magnesium alloy
Motor
Ring-type ultrasonic
Linear Motor
Optical Formula | Elements
20 elements
24 elements
22 elements
Optical Formula | Groups
14 groups
17 groups
17 groups
Optical Formula | Special Glass
2 anomalous dispersion and 3 ED elements + HD coating groups
4 Super ED elements, 3 ED elements groups
6 Super ED + 2 ELD elements groups
Dimensions
Filter Diameter
67 mm / 2.64 in
82 mm / 3.23 in
82 mm / 3.23 in
Size | Diameter
79 mm / 3.11 in
99 mm / 3.90 in
87 mm / 3.43 in
Size | Length
175 mm / 6.89 in
315 mm / 12.40 in
207 mm / 8.15 in
Weight
819 g / 28.94 oz
1605 g / 56.71 oz
1080 g / 38.16 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)
11.0° Diagonal | 9.1° Horizontal | 6.1° Vertical (wide) ~ 2.8° Diagonal | 2.3° Horizontal | 1.5° Vertical (tele)
31.7° Diagonal (wide) ~ 12.0° Diagonal (tele)
Aperture
f/4 ~ f/32
f/5.6–8 ~ f/22
f/2.8 ~ f/22
Autofocus
Yes
Yes
No
Crop Factor
1.5
1.5
1.5
Focal Length
70 mm ~ 210 mm
150 mm ~ 600 mm
50 mm ~ 135 mm
Focal Length (35mm Equivalent)
105.0 mm ~ 315.0 mm
225.0 mm ~ 900.0 mm
76 mm ~ 206 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
Yes (5 stops)
No
Weather Resistance
Yes
Yes
No
Zoom Type
Internal zoom
Internal zoom
Internal zoom
Performance
Max Magnification
0.32x
Min Focus Distance
950 mm / 37.40 in
2400 mm / 94.49 in
850 mm / 33.46 in
Production
Accessory
Lens hood included
Lens hood included
Lens hood included
Debut
2020-01-22
2022-05-31
2018-02-15
Reviews
Neofiliac score
31%
70%
52%
Pros
- Weather-sealed
- Beautifully built
- Very useful focal range
- Optically stabilized
- Internal zoom
- Weather-sealed
- Comes with physical aperture ring
- Comes with a tripod collar
- Great build quality
- Good image quality
- Internal zoom
- Comes with a tripod collar
- Full cine housing like Fujinon's professional cine lenses
Cons
- Dark maximum aperture
- Dark maximum aperture
- Large physical size with large diameter and long barrel
- On the heavy side
- Lacks weather sealing
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