M6 mark II shutter shock with EF-M 15-45mm

AdamT wrote:

From what I've read, when there is shutter shock it is actually caused by the IS,

It`s not Caused by the IS, it`s caused by the M6-II`s first mechanical curtain , there are no such issues with IS lenses on any other M series body because all of them have eletrconic first curtain as does the DSLR version of the M6-II, the 90D ..

It's caused by interaction between the mechanical shutter and IS. Thus it is caused by the IS, in the sense that the IS is what determines, in the M6II, whether you'll see any (often very slight) shutter shock. My point, which shouldn't have been hard to understand, was that you don't get shutter shock with non-IS lenses. The meaning of what I wrote was obvious, and I'm surprised to see that you didn't understand it (or perhaps willfully misunderstood it).

so lenses without IS don't have it. None of my primes show it. I was able to see it a little with my 11-22 in the 1/20-1/100 range. It's not an issue for me

well its an issue for a lot (Most I`d say) and it needs sorting, Period . the camera ships with the 15-45 as a kit and that lens has IS - the best quality native zoom for the system is the 11-22 and even you have seen it with this also (I use this lens as a "kit" lens, barely touched the 22mm prime since getting it)

I`ve Mailed canon about it (to the point of saying that I won`t buy the camera until its sorted and suggest that anyone even remotely interested in the M6-II does also, even if you use one prime or only shoot over 500th sec as one day you`ll want to use that 11-22 or 15-45 and not want to use wobbly E-Shutter mode - the problematic shutter speed area is the most common . Its the Squeaky wheel which gets Greased !

If they didn`t want to have people leave EFCS on all the time because of the occasional bokeh issue they could copy what Olympus did and only have it activated in the affected shutter speed area