Compare Olympus 300mm F4 IS Pro vs Olympus 25mm F1.8
Construction
Aperture Blades
9 blades
7 blades, Circular aperture diaphragm
Colors
Black
Black or Silver
Form Factor
Super Telephoto Prime Lens
Normal Prime Lens
Image Size
MFT
MFT
Lens Barrel
Focus limiter, Tripod collar
Lens Mount
Micro Four Thirds-mount
Micro Four Thirds-mount
Motor
Micro-type ultrasonic
Stepper motor
Optical Formula | Elements
17 elements
9 elements
Optical Formula | Groups
10 groups
7 groups
Optical Formula | Special Glass
Three super ED, one extra-high refractive, three high refractive elements + ZERO nano coating groups
2 aspherical elements groups
Dimensions
Filter Diameter
77 mm / 3.03 in
46 mm / 1.81 in
Size | Diameter
93 mm / 3.66 in
56 mm / 2.20 in
Size | Length
227 mm / 8.94 in
41 mm / 1.61 in
Weight
1270 g / 44.88 oz
136 g / 4.81 oz
Function
Angle Of View
4.1° Diagonal | 3.4° Horizontal | 2.3° Vertical
46.8° Diagonal | 39.6° Horizontal | 27.0° Vertical
Aperture
f/4 ~ f/22
f/1.8 ~ f/22
Autofocus
Yes
Yes
Crop Factor
2.0
2.0
Focal Length
300 mm
25 mm
Focal Length (35mm Equivalent)
600.0 mm
50.0 mm
Focus Type
Internal
Internal
Image Stabilization
Yes
No
Weather Resistance
Yes
Performance
Max Magnification
0.24x
0.12x
Min Focus Distance
1400 mm / 55.12 in
240 mm / 9.45 in
Production
Accessory
Lens hood included
Lens Hood: LH-49B (supplied)
Debut
2016-01-06
2014-01-29
Reviews
Neofiliac score
39%
76%
Pros
- 600mm equivalent reach
- Optically stabilized
- Weather-sealed
- Comes with a tripod collar
- Good autofocus
- Very sharp
- Compact and lightweight
Cons
- Large and heavy
- Rather expensive
- Not the sharpest normal lens
- Not competitively priced
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