Compare Olympus 8-25mm F4 Pro vs Olympus 75-300mm F4.8-6.7 II vs Panasonic DG 100-400mm F4.0-6.3
Construction
Aperture Blades
7 blades
7 blades, Circular aperture
9 blades, Circular blades
Colors
Black
Black
Black
Form Factor
Zoom Lens
Super Telephoto Zoom Lens
Super Telephoto Zoom Lens
Image Size
MFT
MFT
MFT
Lens Barrel
Distance scale
Focus limiter, Tripod collar
Lens Mount
Micro Four Thirds-mount
Micro Four Thirds-mount
Micro Four Thirds-mount
Material
Magnesium alloy
Motor
Linear Motor
Micromotor
Micromotor
Optical Formula | Elements
16 elements
18 elements
20 elements
Optical Formula | Groups
10 groups
13 groups
13 groups
Optical Formula | Special Glass
1 DSA + 1 Super ED + 1 ED + 1 HR + 2 aspherical ED elements, ZERO coating groups
1 Super ED glass element1 ED glass element3 HR glass elements1 E-HR glass element ZERO coating groups
1 aspherical ED, 1 UED, 2 ED elements groups
Dimensions
Filter Diameter
72 mm / 2.83 in
58 mm / 2.28 in
72 mm / 2.83 in
Size | Diameter
77 mm / 3.03 in
69 mm / 2.72 in
83 mm / 3.27 in
Size | Length
89 mm / 3.50 in
117 mm / 4.61 in
172 mm / 6.77 in
Weight
411 g / 14.52 oz
423 g / 14.95 oz
985 g / 34.81 oz
Function
Angle Of View
107.1° Diagonal | 96.7° Horizontal | 73.7° Vertical (wide) ~ 46.8° Diagonal | 39.6° Horizontal | 27.0° Vertical (tele)
16.4° Diagonal | 13.7° Horizontal | 9.1° Vertical (wide) ~ 4.1° Diagonal | 3.4° Horizontal | 2.3° Vertical (tele)
12.4° Diagonal | 10.3° Horizontal | 6.9° Vertical (wide) ~ 3.1° Diagonal | 2.6° Horizontal | 1.7° Vertical (tele)
Aperture
f/4 ~ f/22
f/4.8–6.7 ~ f/22
f/4–6.3 ~ f/22
Autofocus
Yes
Yes
Yes
Crop Factor
2.0
2.0
2.0
Focal Length
8 mm ~ 25 mm
75 mm ~ 300 mm
100 mm ~ 400 mm
Focal Length (35mm Equivalent)
16.0 mm ~ 50.0 mm
150.0 mm ~ 600.0 mm
200.0 mm ~ 800.0 mm
Focus Type
Internal
Internal
Extending front
Image Stabilization
No
No
Yes
Weather Resistance
Yes
No
Yes
Zoom Type
External zoom
External zoom
External zoom (zoom lock available)
Performance
Max Magnification
0.14x
0.18x
0.25x
Min Focus Distance
230 mm / 9.06 in
900 mm / 35.43 in
1300 mm / 51.18 in
Production
Accessory
Lens hood included
Lens hood sold separately
Lens hood included
Debut
2021-06-09
2013-01-30
2016-01-05
Model Name
H-RS100400
Reviews
Neofiliac score
48%
31%
50%
Pros
- Very appealing ultra-wide to normal focal range
- Beautifully constructed
- Weather-sealed
- Good IQ
- Affordable for the useful reach
- Rather light and compact for a super tele
- Amazing 800mm equivalent reach
- Optically stabilized
- Zoom lock prevents zoom creep
- Weather-sealed
- Comes with a tripod collar
- Superb sharpness
Cons
- Dark maximum aperture
- External zoom without zoom lock
- Rather expensive for MFT
- Dark and variable maximum aperture
- External zoom without zoom lock
- Lens hood not included
- Lacks weather sealing
- Dark maximum aperture
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