IBIS - somewhat, not compelling by itself
To me, this is the MOST compelling feature of this camera. It is a game changer for people who hate tripods and like to photograph in the evening/night and indoors. I can do things with this camera I couldn't dream of with my previous cameras, which yes, did have IS.
I also got the 12-100mm which adds even more to the IS.
Clearly whether this camera is "worth the money" depends on the kind of shooting you do and your budget.
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Judy
Agreed. As a travel photographer I *hate* tripods. With the E-M1 Mk2 and 12-100 I've shot wideangle dusk seascapes with motion-blurred water at 1sec and telephoto shots of details in dimly-lit ceilings at 1/8sec, all pin-sharp. I don't believe there's any other combination at any price that could achieve this with the same hit rate.
Also, from my earlier list of reasons why I bought the Mk2 (and would do so again) despite having posted here in support of the thread saying I thought the price too high when it was first announced, I'd like to add another point. Pro Capture. That's a brilliant feature for portraits.