Compare Olympus 20mm F1.4 Pro vs Olympus 25mm F1.8
Construction
Aperture Blades
9 blades, Circular aperture diaphragm
7 blades, Circular aperture diaphragm
Colors
Black or Silver
Form Factor
Normal Prime Lens
Normal Prime Lens
Image Size
MFT
MFT
Lens Mount
Micro Four Thirds-mount
Micro Four Thirds-mount
Motor
Stepper motor
Stepper motor
Optical Formula | Elements
11 elements
9 elements
Optical Formula | Groups
10 groups
7 groups
Optical Formula | Special Glass
1 x Super ED, 3 ED, 2 Super HR, 2 Aspherical groups
2 aspherical elements groups
Dimensions
Filter Diameter
58 mm / 2.28 in
46 mm / 1.81 in
Size | Diameter
63 mm / 2.48 in
56 mm / 2.20 in
Size | Length
62 mm / 2.44 in
41 mm / 1.61 in
Weight
247 g / 8.73 oz
136 g / 4.81 oz
Function
Angle Of View
56.8° Diagonal | 48.5° Horizontal | 33.4° Vertical
46.8° Diagonal | 39.6° Horizontal | 27.0° Vertical
Aperture
f/1.4 ~ f/16
f/1.8 ~ f/22
Autofocus
Yes
Yes
Crop Factor
2.0
2.0
Focal Length
20 mm
25 mm
Focal Length (35mm Equivalent)
40.0 mm
50.0 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
Weather Resistance
Yes
Performance
Max Magnification
0.11x
0.12x
Min Focus Distance
250 mm / 9.84 in
240 mm / 9.45 in
Production
Accessory
Lens Hood: LH-61G (supplied)
Lens Hood: LH-49B (supplied)
Debut
2021-11-04
2014-01-29
Reviews
Neofiliac score
84%
76%
Pros
- Bright maximum aperture
- Light in the hand
- Weather-sealed
- Beautifully constructed
- Compact and lightweight
Cons
- No aperture ring or other features on the barrel
- Not the sharpest normal lens
- Not competitively priced
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