Compare Olympus 150-400mm F4.5 vs Panasonic DG 25-50mm F1.7 vs Panasonic DG 10-25mm F1.7
Construction
Aperture Blades
9 blades
9 circular aperture diaphragms
9 blades
Colors
White
Black
Form Factor
Super Telephoto Zoom Lens
Zoom Lens
Image Size
MFT
Full-frame
MFT
Lens Barrel
Focus limiter, Tripod collar
Physical aperture ring, Distance scale
Lens Mount
Micro Four Thirds-mount
Micro Four Thirds mount
Micro Four Thirds-mount
Material
Magnesium alloy
Magnesium alloy
Motor
Stepper motor
Stepper motor
Optical Formula | Elements
28 elements
16 elements
17 elements
Optical Formula | Groups
18 groups
11 groups
12 groups
Optical Formula | Special Glass
1 EDA + 4 super ED + 2 ED + 2 HR + 1 HD elements, Z Nano Coating groups
1 aspherical lens, 3 ED lenses, 1 UHR lens groups
1 UHR, 3 aspherical, 4 ED elements groups
Dimensions
Filter Diameter
95 mm / 3.74 in
77 mm
77 mm / 3.03 in
Size | Diameter
116 mm / 4.57 in
87.6 mm
88 mm / 3.46 in
Size | Length
214 mm / 8.43 in
127.6 mm
128 mm / 5.04 in
Weight
1875 g / 66.25 oz
654 g
690 g / 24.38 oz
Function
Angle Of View
8.3° Diagonal | 6.9° Horizontal | 4.6° Vertical (wide) ~ 3.1° Diagonal | 2.6° Horizontal | 1.7° Vertical (tele)
47° ~ 24°
94.5° Diagonal | 84.0° Horizontal | 61.9° Vertical (wide) ~ 46.8° Diagonal | 39.6° Horizontal | 27.0° Vertical (tele)
Aperture
f/4.5 ~ f/22 / f/5.6 ~ f/29 with built-in teleconverter
F/1.7 ~ f/16
f/1.7 ~ f/16
Autofocus
Yes
Yes
Crop Factor
2.0
2.0
Focal Length
150 mm ~ 400 mm / 187.5 mm ~ 500 mm with built-in teleconverter
0.28 m / 0.92 ft @ 25mm, 0.31 m / 1.02 ft @ 50mm
10 mm ~ 25 mm
Focal Length (35mm Equivalent)
300.0 mm ~ 800.0 mm / 375 mm ~ 1000 mm with built-in teleconverter
50-100 mm
20.0 mm ~ 50.0 mm
Focus Type
Internal
Internal
Image Stabilization
Yes (4.5 stops)
No
Operating Temperature
-10°C ~ 40°C
Weather Resistance
Yes
Dust, moisture
Yes
Zoom Type
External zoom (zoom lock available)
External zoom
External zoom
Performance
Max Magnification
0.71x
0.21x @ 50mm
0.14x
Min Focus Distance
1300 mm / 51.18 in
0.37 m
280 mm / 11.02 in
Production
Accessory
Lens hood included
Lens hood included
Debut
2019-01-24
2021-07-08
2019-05-31
Model Name
H-X2550
H-X1025
Reviews
Neofiliac score
48%
69%
Pros
- Built-in 1.25x teleconverter
- Optically stabilized
- Superb autofocus
- Zoom lock prevents zoom creep
- High maximum magnification
- Weather-sealed
- Comes with a tripod collar
- Great image quality
- Smart clutch focus ring
- Superb build quality
- Weather-sealed
- Comes with physical aperture ring
Cons
- Large and heavy for MFT
- Priced too high
- External zoom without zoom lock
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