KOWA 8.5mmF2.8/12mmF1.8/25mmF1.8 上市
|
| Model |
PROMINAR8.5mm F2.8 |
PROMINAR12mm F1.8 |
PROMINAR25mm F1.8 |
|---|
| Mount |
Micro Four Thirds |
Micro Four Thirds |
Micro Four Thirds |
|---|
| Focal Length |
8.5mm
(35mm Equivalent Focal length: 17mm) |
12mm
(35mm Equivalent Focal length: 24mm) |
25mm
(35mm Equivalent Focal length: 50mm) |
|---|
| F/T-number |
F2.8/T3.0 |
F1.8/T1.9 |
F1.8/T1.9TV |
|---|
Distortion
(TV) |
0.12% |
0.59% |
-0.57% |
|---|
| Minimum Aperture |
F16/T17 |
F16/T17 |
F16/T17 |
|---|
| Lens Construction |
17 Elements in 14 Groups |
12 Elements in 10 Groups |
8 Elements in 6 Groups |
|---|
Angle of View
(degree) |
93.5°(H）×77.1°(V）×106.0°(D) |
74.9°(H）×59.6°(V）×86.8°(D) |
40.9°(H）×31.1°(V）×50．2°(D） |
|---|
| Iris |
9
(Circular Aperture) |
9
(Circular Aperture) |
9
(Circular Aperture) |
|---|
Minimum Focusing
Distance |
0.2m |
0.2m |
0.25m |
|---|
Maximum Image
Magnification |
0.08x |
0.1x |
0.15x |
|---|
| Minimum Field Size |
239mm×179mm |
182mm×136mm |
125mm×93mm |
|---|
| Filter Thread |
φ86mm
(attach to lens hood) |
φ72mm |
φ55mm |
|---|
| Diameter x Length |
φ71.5×86.8mm
(excluding the lens hood) |
φ76.5×90.5mm
(excluding the lens hood) |
φ60×94mm
(excluding the lens hood) |
|---|
| Weight |
475g
(excluding the lens hood) |
441g
(excluding the lens hood) |
400g
(excluding the lens hood) |
|---|
[Note] Some lenses of the micro four thirds system standard may not be mounted to the camera. |
2017-03-30 |
 |
