Compare Olympus 8mm F1.8 Fisheye PRO vs Olympus 9mm F8 Fisheye vs Samyang 7.5mm F3.5 UMC Fisheye
Construction
Aperture Blades
7 blades, Circular
Colors
Black
Form Factor
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Image Size
MFT
MFT
MFT
Lens Barrel
Physical aperture ring, Distance scale
Lens Mount
Micro Four Thirds-mount
Micro Four Thirds-mount
Micro Four Thirds-mount
Material
Plastic
Motor
Stepper motor
Optical Formula | Elements
17 elements
5 elements
9 elements
Optical Formula | Groups
15 groups
4 groups
7 groups
Optical Formula | Special Glass
1 aspherical, 3 super ED, 2 ED, 1 super HR, 2 HR lenses groups
2 aspherical elements groups
Dimensions
Size | Diameter
62 mm / 2.44 in
56 mm / 2.20 in
60 mm / 2.36 in
Size | Length
80 mm / 3.15 in
13 mm / 0.51 in
48 mm / 1.89 in
Weight
314 g / 11.10 oz
30 g / 1.06 oz
197 g / 6.96 oz
Function
Angle Of View
180° Diagonal (fisheye)
100.5° Diagonal | 90.0° Horizontal | 67.4° Vertical
180° Diagonal (fisheye)
Aperture
f/1.8 ~ f/22
f/8 ~ f/8
f/3.5 ~ f/22
Autofocus
Yes
No
No
Crop Factor
2.0
2.0
2.0
Focal Length
8 mm
9 mm
7.5 mm
Focal Length (35mm Equivalent)
16.0 mm
18.0 mm
15.0 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
Weather Resistance
Yes
No
Performance
Max Magnification
0.2x
0.046x
Min Focus Distance
120 mm / 4.72 in
200 mm / 7.87 in
90 mm / 3.54 in
Production
Accessory
Lens hood included
Lens hood sold separately
Lens Hood: Built-in petal-type hood (supplied)
Debut
2015-05-12
2014-01-29
2011-09-05
Reviews
Neofiliac score
67%
48%
50%
Pros
- 180° FOV
- Weather-sealed
- Beautifully constructed
- Negligible size and weight
- Very light and compact
- 180° FOV
Cons
- Priced higher than full-frame fisheyes
- Lacks front filter thread
- Dark f/8 aperture
- Lacks front filter thread
- Not a serious lens
- Lacks front filter thread
- Lacks weather sealing
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