Compare Olympus 8mm F1.8 Fisheye PRO vs Olympus 20mm F1.4 Pro
Construction
Aperture Blades
7 blades, Circular
9 blades, Circular aperture diaphragm
Colors
Black
Form Factor
Ultra Wide-Angle 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
17 elements
11 elements
Optical Formula | Groups
15 groups
10 groups
Optical Formula | Special Glass
1 aspherical, 3 super ED, 2 ED, 1 super HR, 2 HR lenses groups
1 x Super ED, 3 ED, 2 Super HR, 2 Aspherical groups
Dimensions
Filter Diameter
58 mm / 2.28 in
Size | Diameter
62 mm / 2.44 in
63 mm / 2.48 in
Size | Length
80 mm / 3.15 in
62 mm / 2.44 in
Weight
314 g / 11.10 oz
247 g / 8.73 oz
Function
Angle Of View
180° Diagonal (fisheye)
56.8° Diagonal | 48.5° Horizontal | 33.4° Vertical
Aperture
f/1.8 ~ f/22
f/1.4 ~ f/16
Autofocus
Yes
Yes
Crop Factor
2.0
2.0
Focal Length
8 mm
20 mm
Focal Length (35mm Equivalent)
16.0 mm
40.0 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
Weather Resistance
Yes
Yes
Performance
Max Magnification
0.2x
0.11x
Min Focus Distance
120 mm / 4.72 in
250 mm / 9.84 in
Production
Accessory
Lens hood included
Lens Hood: LH-61G (supplied)
Debut
2015-05-12
2021-11-04
Reviews
Neofiliac score
67%
84%
Pros
- 180° FOV
- Weather-sealed
- Beautifully constructed
- Bright maximum aperture
- Light in the hand
- Weather-sealed
- Beautifully constructed
Cons
- Priced higher than full-frame fisheyes
- Lacks front filter thread
- No aperture ring or other features on the barrel
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