Up to 1/2 sec in good light. About 1 sec in dim light.
That;s interesting. I haven't been thrilled with the focus speed of the 45 on my E-PL3. Lovely lens, lovely pix, but thew focus speed is not up to wht I expected. Oay in good light, not nearly so good in poor light. The fr2.5 14mm panny, for example, does much better in poor light.