[Brightcolours]

KInda weird to have this discussion.... As it is not something unknown.

 

IBIS makes that the sensor can move. The shutter movement creates a energy.

 

Now what is shutter shock? They coined this term to describe a new issue with some mirrorless cameras like the A7R. The shutter creates a shock big enough to cause the sensor of cameras with IBIS to move, creating blur in a certain exposure time range.

IBIS is then very central to this issue. The Sony A7 was not affected: it has no IBIS (and a different shutter even, too).

 

Apparently, some Pentax DSLRs also can have a shutter shock issue. Some Olympus mirrorless cameras have a shutter shock issue too, and it too is related to having IBIS (just like the A7R and some Pentax DSLRs).

 

Some cameras also have a shutter shock issue with certain lenses with IS. The Nikon D8X0 (also other models like the D750) apparently shows it with some lenses, where the shutter slaps hard enough to make the VR module vibrate and cause blur issues at certain exposure times. One lens especially affected is the new 300mm f4 PF, biut apparently some other lenses also have a shutter shock issue. Also apparently the Panasonic 14-140mm lens can show a shutter shock issue,

 

There have not been any reports of Canon lenses with IS that would show similar shutter shock issues.

 

1st curtain electronic shutters have been implemented to prevent the shutter to cause IBIS sensor vibration.