Japanese lens manufacturer Kowa has unveiled three new “Prominar” lenses for the Micro Four Thirds system camera. These are Kowa 8.5mm f/2.8, 12mm f/1.8, 25mm f/1.8 MFT lenses.
The Kowa Prominar 8.5mm f/2.8 MFT is a 17mm equivalent rectilinear lens with a surprisingly low amount of geometric distortion (0.12% barrelling).
The Kowa Prominar 12mm f/1.8 MFT is a fast 24mm equivalent wide-angle lens, while the Kowa Prominar 25mm f/1.8 MFT is a 50mm equivalent “normal” prime. All three lenses have proper distance scales and aperture rings.
Kowa 8.5mm f/2.8, 12mm f/1.8, 25mm f/1.8 MFT lenses will be available for Summer 2014. See detailed specs below.
Kowa Announces 8.5mm f/2.8, 12mm f/1.8, 25mm f/1.8 MFT Lenses
Kowa Prominar 8.5mm f/2.8 MFT Lens Specs
| Focal length | 8.5mm |
|---|---|
| F / maximum aperture ratio (T number) | F2.8/T3.0 |
| TV distortion value (distortion) | 0.12% |
| Angle of view | 93.5 ° × 77.1 ° |
| Minimum focusing distance | 0.2m |
| Shooting range of contact during recent | 239 × 179mm |
Kowa Prominar 12mm f/1.8 MFT Lens Specs
| Focal length | 12mm |
|---|---|
| F / maximum aperture ratio (T number) | F1.8/T1.9 |
| TV distortion value (distortion) | 0.59% |
| Angle of view | 74.9 ° × 59.6 ° |
| Minimum focusing distance | 0.2m |
| Shooting range of contact during recent | 182 × 136mm |
Kowa Prominar 25mm f/1.8 MFT Lens Specs
| Focal length | 25mm |
|---|---|
| F / maximum aperture ratio (T number) | F1.8/T1.9 |
| TV distortion value (distortion) | -0.57% |
| Angle of view | 40.9 × 31.1 ° |
| Minimum focusing distance | 0.25m |
| Shooting range of contact during recent | 125 × 93mm |
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