Image Shake / Shutter Shock.
I’ve had the EM-5 for over a year now and it’s a fantastic balance between size and performance. Shutter shock was also a widely discussed topic when the EM-5 came out.
The ‘fix’ on the EM-5 is to engage Anti-Shock from custom menu ‘E’. I use the fastest setting of 1/8s (shame there isn’t a faster setting of say 1/32s) which essentially introduces a 1/8s delay to the shutter.
I was concerned about this delay but after a year of shooting, it’s truly a non issue for me. Where split-second timing is critical, I use continuous drive anyway to capture 3/6 frames per second.
In rare cases where single frame and split-second timing is needed, ISO 400 or 800 give great IQ.
I suspect the reason it’s a little more prevalent on the P5 is due to the new ISO 100 setting, leading to lower shutter speeds.
In short, if you wan’t the performance/size benefits, don’t let shutter-shock put you off. All cameras have compromises, and this issue is an easy work-around.

Started out doing photography at the age of 6 using an uncle's old 1940 kodak brownie box camera. At 15 years of age, I decided to buy my very own 1975 Praktica SLR camera. I now shoot with a Nikon D850. I do unpaid TFP and commercial paid work.