I have the Panasonic 20mm lens on my Olympus OM-D, and it sometimes has a hard time focusing in low light. Not that low -- like, under normal indoor lighting conditions it sometimes seeks a lot. I'm wondering if anyone else has that problem, and whether the Panasonic 25mm f1.4 also has that problem. If the latter does a better job I'm thinking of going with that lens instead. Thanks!