Compare Samyang 7.5mm F3.5 UMC Fisheye vs Olympus 300mm F4 IS Pro vs Olympus 8mm F1.8 Fisheye PRO
Construction
Aperture Blades
9 blades
7 blades, Circular
Colors
Black
Black
Form Factor
Ultra Wide-Angle Prime Lens
Super Telephoto Prime Lens
Ultra Wide-Angle Prime Lens
Image Size
MFT
MFT
MFT
Lens Barrel
Physical aperture ring, Distance scale
Focus limiter, Tripod collar
Lens Mount
Micro Four Thirds-mount
Micro Four Thirds-mount
Micro Four Thirds-mount
Motor
Micro-type ultrasonic
Stepper motor
Optical Formula | Elements
9 elements
17 elements
17 elements
Optical Formula | Groups
7 groups
10 groups
15 groups
Optical Formula | Special Glass
Three super ED, one extra-high refractive, three high refractive elements + ZERO nano coating groups
1 aspherical, 3 super ED, 2 ED, 1 super HR, 2 HR lenses groups
Dimensions
Filter Diameter
77 mm / 3.03 in
Size | Diameter
60 mm / 2.36 in
93 mm / 3.66 in
62 mm / 2.44 in
Size | Length
48 mm / 1.89 in
227 mm / 8.94 in
80 mm / 3.15 in
Weight
197 g / 6.96 oz
1270 g / 44.88 oz
314 g / 11.10 oz
Function
Angle Of View
180° Diagonal (fisheye)
4.1° Diagonal | 3.4° Horizontal | 2.3° Vertical
180° Diagonal (fisheye)
Aperture
f/3.5 ~ f/22
f/4 ~ f/22
f/1.8 ~ f/22
Autofocus
No
Yes
Yes
Crop Factor
2.0
2.0
2.0
Focal Length
7.5 mm
300 mm
8 mm
Focal Length (35mm Equivalent)
15.0 mm
600.0 mm
16.0 mm
Focus Type
Internal
Internal
Image Stabilization
No
Yes
No
Weather Resistance
No
Yes
Yes
Performance
Max Magnification
0.24x
0.2x
Min Focus Distance
90 mm / 3.54 in
1400 mm / 55.12 in
120 mm / 4.72 in
Production
Accessory
Lens Hood: Built-in petal-type hood (supplied)
Lens hood included
Lens hood included
Debut
2011-09-05
2016-01-06
2015-05-12
Reviews
Neofiliac score
50%
39%
67%
Pros
- Very light and compact
- 180° FOV
- 600mm equivalent reach
- Optically stabilized
- Weather-sealed
- Comes with a tripod collar
- Good autofocus
- Very sharp
- 180° FOV
- Weather-sealed
- Beautifully constructed
Cons
- Lacks front filter thread
- Lacks weather sealing
- Large and heavy
- Rather expensive
- Priced higher than full-frame fisheyes
- Lacks front filter thread
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