Here's a question for anyone who has used the Panasonic 100-300mm zoom on the Olympus E-PM5 body: Do you find the camera's five-axis IBIS or the lens's OIS more effective? Particularly at the long end of the zoom. The traditional logic usually held that IBIS wasn't as effective as in-lens stabilization beyond an effective 500mm. And, in fact, many E-M5 users say the five-axis stabilization is particularly useful for macro shots - which on the face of it is in line with that traditional logic. But things are not always as simple as they seem. What say ye?