Compare Olympus 17mm F1.8 vs Olympus 8mm F1.8 Fisheye PRO vs Olympus 45mm F1.2 Pro
Construction
Aperture Blades
7 blades, Circular aperture diaphragm
7 blades, Circular
9 blades
Colors
Silver, black
Black
Black
Form Factor
Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Short Telephoto Prime Lens
Image Size
MFT
MFT
MFT
Lens Barrel
Distance scale, DoF scale
DoF scale
Lens Mount
Micro Four Thirds-mount
Micro Four Thirds-mount
Micro Four Thirds-mount
Material
Magnesium alloy
Motor
Micromotor
Stepper motor
Stepper motor
Optical Formula | Elements
9 elements
17 elements
14 elements
Optical Formula | Groups
6 groups
15 groups
10 groups
Optical Formula | Special Glass
2 Aspherical, HR glass element groups
1 aspherical, 3 super ED, 2 ED, 1 super HR, 2 HR lenses groups
1 ED, 4 HR, 1 aspherical groups
Dimensions
Filter Diameter
46 mm / 1.81 in
62 mm / 2.44 in
Size | Diameter
58 mm / 2.28 in
62 mm / 2.44 in
70 mm / 2.76 in
Size | Length
36 mm / 1.42 in
80 mm / 3.15 in
85 mm / 3.35 in
Weight
120 g / 4.24 oz
314 g / 11.10 oz
410 g / 14.49 oz
Function
Angle Of View
65.0° Diagonal | 55.8° Horizontal | 38.9° Vertical
180° Diagonal (fisheye)
27.1° Diagonal | 22.6° Horizontal | 15.2° Vertical
Aperture
f/1.8 ~ f/22
f/1.8 ~ f/22
f/1.2 ~ f/16
Autofocus
Yes
Yes
Yes
Crop Factor
2.0
2.0
2.0
Focal Length
17 mm
8 mm
45 mm
Focal Length (35mm Equivalent)
34.0 mm
16.0 mm
90.0 mm
Focus Type
Internal
Internal
Internal
Image Stabilization
No
No
No
Weather Resistance
Yes
Yes
Performance
Max Magnification
0.08x
0.2x
0.1x
Min Focus Distance
250 mm / 9.84 in
120 mm / 4.72 in
500 mm / 19.69 in
Production
Accessory
Lens hood included
Lens Hood: LH-66B (supplied)
Debut
2012-06-15
2015-05-12
2017-10-25
Reviews
Neofiliac score
76%
67%
84%
Pros
- Compact and lightweight
- Good IQ stopped down
- 180° FOV
- Weather-sealed
- Beautifully constructed
- Bright maximum aperture
- Weather-sealed
- Very sharp
- Good rendering
Cons
- Low maximum magnification
- Expensive for what it is
- Priced higher than full-frame fisheyes
- Lacks front filter thread
- Priced like a full-frame portrait lens
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