Compare Pentax 03 Fish-Eye vs Panasonic G Fisheye 8mm F3.5 vs Panasonic G 25mm F1.7
Construction
Aperture Blades
7 blades, rounded blades
7 blades, Circular blades
Colors
Black
Form Factor
Ultra Wide-Angle Prime Lens
Ultra Wide-Angle Prime Lens
Normal Prime Lens
Image Size
1/1.7"
MFT
MFT
Lens Barrel
Distance scale
Lens Mount
Pentax Q-mount
Micro Four Thirds-mount
Micro Four Thirds-mount
Material
Plastic mount
Motor
Micromotor
Stepper motor
Optical Formula | Elements
6 elements
10 elements
8 elements
Optical Formula | Groups
5 groups
9 groups
7 groups
Optical Formula | Special Glass
1 ED glass element groups
2 aspherical + 1 UHR element groups
Dimensions
Filter Diameter
46 mm / 1.81 in
Size | Diameter
41 mm / 1.61 in
61 mm / 2.40 in
61 mm / 2.40 in
Size | Length
31 mm / 1.22 in
52 mm / 2.05 in
52 mm / 2.05 in
Weight
29 g / 1.02 oz
165 g / 5.83 oz
125 g / 4.42 oz
Function
Angle Of View
173° Diagonal (Q7)
180° Diagonal
46.8° Diagonal | 39.6° Horizontal | 27.0° Vertical
Aperture
f/5.6
f/3.5 ~ f/22
f/1.7 ~ f/22
Autofocus
No
Yes
Yes
Crop Factor
4.6
2.0
2.0
Focal Length
3.2 mm
8 mm
25 mm
Focal Length (35mm Equivalent)
14.7 mm
16.0 mm
50.0 mm
Focus Type
Internal
Internal
Image Stabilization
No
No
Weather Resistance
No
Performance
Max Magnification
0.06x
0.2x
0.14x
Min Focus Distance
90 mm / 3.54 in
100 mm / 3.94 in
250 mm / 9.84 in
Production
Accessory
Lens Hood: built-in hood (supplied)
Lens hood included
Debut
2011-06-23
2010-06-01
2015-09-02
Model Name
H-H025
Reviews
Neofiliac score
50%
60%
60%
Pros
- Extremely light and compact
- 173°FOV
- 180° FOV
- Compact and lightweight
- Compact and lightweight
- Good but not special optically
Cons
- Dark and fixed f/5.6 aperture
- Not made for IQ
- Lacks front filter thread
- Lacks weather sealing
- Average build quality
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