adech: The samples show its very capable wide open for indoor us and its hi tech in a sense. Its T1.6 which is more like a f/1.4 for regular photography.
@yakokkie: No, that's not right. f/1.6 at ISO 100 on m4/3 means f/1.6 at ISO 100 on 35mm ... that is, exposure time will be same for m4/3 as for film shot at ISO 100 f/1.6 .... That is, phototransformations comment is correct.
yabokkie: yet another cheap lens? 12/1.6 is equivalent of 24/3.2 on a 35mm body. if you want a high quality lens at that spec, TS-E 24/3.5L2 is the way to go.
yabokkie is misleading about f-stop. His point has been refuted elsewhere. f/1.6 lens on 4/3 admits sufficient light on its sensor to allow the sensor to use f/1.6 setting - shutter setting will be comparable for film. It is true that on m4/3 the DOF is like what a 24mm f/3.2 DOF would be like.