Compare Olympus 25mm F1.8 vs Olympus 20mm F1.4 Pro vs Olympus 12mm F2
Construction
Aperture Blades
7 blades, Circular aperture diaphragm
9 blades, Circular aperture diaphragm
7 blades, Circular aperture diaphragm
Colors
Black or Silver
Silver
Form Factor
Normal Prime Lens
Normal Prime Lens
Wide-Angle Prime Lens
Image Size
MFT
MFT
MFT
Lens Barrel
Distance scale, DoF scale
Lens Mount
Micro Four Thirds-mount
Micro Four Thirds-mount
Micro Four Thirds-mount
Material
Metal barrel, metal mount
Motor
Stepper motor
Stepper motor
Micromotor
Optical Formula | Elements
9 elements
11 elements
11 elements
Optical Formula | Groups
7 groups
10 groups
8 groups
Optical Formula | Special Glass
2 aspherical elements groups
1 x Super ED, 3 ED, 2 Super HR, 2 Aspherical groups
ZERO (ZUIKO Extra-low Reflection Optical) coating groups
Dimensions
Filter Diameter
46 mm / 1.81 in
58 mm / 2.28 in
46 mm / 1.81 in
Size | Diameter
56 mm / 2.20 in
63 mm / 2.48 in
56 mm / 2.20 in
Size | Length
41 mm / 1.61 in
62 mm / 2.44 in
43 mm / 1.69 in
Weight
136 g / 4.81 oz
247 g / 8.73 oz
130 g / 4.59 oz
Function
Angle Of View
46.8° Diagonal | 39.6° Horizontal | 27.0° Vertical
56.8° Diagonal | 48.5° Horizontal | 33.4° Vertical
84.1° Diagonal | 73.7° Horizontal | 53.1° Vertical
Aperture
f/1.8 ~ f/22
f/1.4 ~ f/16
f/2 ~ f/22
Autofocus
Yes
Yes
Yes
Crop Factor
2.0
2.0
2.0
Focal Length
25 mm
20 mm
12 mm
Focal Length (35mm Equivalent)
50.0 mm
40.0 mm
24.0 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
Yes
No
Performance
Max Magnification
0.12x
0.11x
0.08x
Min Focus Distance
240 mm / 9.45 in
250 mm / 9.84 in
200 mm / 7.87 in
Production
Accessory
Lens Hood: LH-49B (supplied)
Lens Hood: LH-61G (supplied)
Lens hood sold separately
Debut
2014-01-29
2021-11-04
2011-06-30
Reviews
Neofiliac score
76%
84%
58%
Pros
- Compact and lightweight
- Bright maximum aperture
- Light in the hand
- Weather-sealed
- Beautifully constructed
- Compact and lightweight
- Good center sharpness
Cons
- Not the sharpest normal lens
- Not competitively priced
- No aperture ring or other features on the barrel
- Lens hood not included
- Low maximum magnification
- Lacks weather sealing
- Rather expensive for what it is
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