Olympus M5 - IBIS vs OIS with Pana 100-300 / Pana 14-45

Hi Luis. Well, the OIS of the 100-300 used to be pretty inefficient at the long end, just as you say. But things improved quite a bit with the firmware upgrade released at the end of January, which specifically promises to improve the functionality of the OIS, and actually does so according to my own experience as well as that of other users. OK, you wouldn't nail it on every try when shooting at 1/160, but unlike before, you have at least some chances of getting a really sharp shot. That said, it is quite conceivable that the IBIS of the E-M5 is even better.

Well, OIS performance isn't quite constant. Luckily there are firmware upgrades.

Here's today's catch from the 100-300, both shot with the G1 at ISO 100 and max aperture. Didn't have reason to go as far down in terms of shutter speed this time since the light was reasonably good.

EDIT: If the images don't expand when clicked upon, as they normally should, try "open in a new window" to watch them.

Even a mundande Eurasian Tree Sparrow (passer montanus) can look rather colorful under the right circumstances (300 mm, f/5.6, 1/320 s, cropped to about the one quarter of the original size).