Panasonic's compact MFT portrait prime — 85mm equiv at f/1.7 with OIS in a tiny package.
The Panasonic Lumix G 42.5mm f/1.7 ASPH. Power O.I.S. is a compact portrait prime for Micro Four Thirds providing 85mm equivalent at f/1.7. It offers the classic portrait focal length with image stabilisation in one of the smallest packages available for any system.
Optically good — sharp from f/2.5 with pleasant bokeh at f/1.7. The fast aperture provides decent subject separation on MFT despite the smaller sensor. Power O.I.S. stabilisation aids handheld shooting. Quiet AF motor suitable for video work.
Micro Four Thirds mount with 37mm filter thread — very small. Weighs just 130g — incredibly compact. No weather sealing. Minimum focus distance 31cm. 7 rounded aperture blades. Metal mount with plastic barrel.
Available used very cheaply — outstanding value for a fast portrait prime. The Olympus 45mm f/1.8 is the direct competitor with similar optics. The Sigma 56mm f/1.4 DC DN is sharper but larger. An essential portrait lens for MFT shooters on a budget.