I get the slow shutter speed side and how it helps hand held shots. In one article, I forget which, it said IS took half a second to lock. In general, would that be for for every shot orjust the first?Also read if IS hadn't locked, you could end up with blurry picts. So for faster shutter speeds, do you keep it disabled for clearer shots and longerbattery life, or does itmatter.


thanks for reading this.