(via 1001 Noisy Cameras) Focus Numérique did an interesting AF comparison of the E-P2 and GF1 using the Pana 20 and Oly 17 on both cameras. It is nicely presented, graphically, to demonstrate the differences in AF timings. Links: Original (French) Google translated English My interpretation of the Google translation is the following: All combinations (GF1 Pana 20, GF1 Oly 17, E-P2 Pana 20, E-P2 Oly 17) took about 0.5s to achieve focus on a target (? 80 cm distance) the first time after powering on the camera. 3 of the combinations - GF1 Oly 17, E-P2 Pana 20, E-P2 Oly 17 - continued to take ~0.5s to lock focus on subsequent repeat photos of the target The GF1 Pana 20 combo was about 20% faster (~0.4s vs ~0.5s) than the rest when a subsequent photo was taken without first powering off the camera (which sets the focus back to infinity) If anyone speaks French, please let me know if I understood correctly.