I have been shooting digitally since the Canon 10d in progression all the way through to the 5D Mark III in my wedding and event work. In that time I have had several in lens image stabilizers and yes in deed they have a little bit of a clunk when starting up and shutting down the IS. The IBIS in the EM1 at startup and especially at shut down noise seems excessive to me. Anyone else feeling the same or having any issues with the IBIS of the EM1? I need to make a vid example of this "clunk" Makes me nervous in fact and doubt its longevity and viability as an event photographer camera.