Some test shots to see how m4/3 can cope in low light. Using an Olympus E-PL2 with its image stabilisation and a Four Thirds Leica Panasonic Summilux 25mm f/1.4 wide open at f/1.4. As you can see from the various shutter speeds, it does actually work very well. All pictures are taken hand held, indoors with natural light, mid afternoon on a dull day.
I have sold the lens, but am waiting for the Panasonic m4/3 version.
1/80th sec ISO 250
1/40th sec ISO 200
1/15th sec ISO 200
1/13th sec ISO 200
1/25th sec ISO 200
1/200th sec ISO 200
1/250th sec ISO 200