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https://www.dxomark.com/Lenses/Kowa/Kowa-Prominar-8-5mm-F28-MFT-Mount-Micro-43---Specifications
Kowa Prominar 8.5mm F2.8 Micro 4/3 - DXOMARK
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https://www.dxomark.com/Lenses/Kowa/Kowa-Prominar-8-5mm-F28-MFT-Mount-Micro-43---Measurements
Kowa Prominar 8.5mm F2.8 Micro 4/3 - DXOMARK
micro 4 3kowa prominardxomark