koenkooi
•
Contributing Member
•
Posts: 920
Re: Strange image shake on R7
1
Circa1200AD wrote:
J.K.T. wrote:
I'm hearing this a bit too frequently. I have to wonder if Canon has made a bit of a design fib with the shutter stock and IBIS. They don't have that much experience with IBIS on cameras with fast rate and the smaller sensor is considerably lighter than FF...
Naturally just is just speculation with no hard facts behind it. It is just the kind of mistake that could be made and would explain these reports.
Sorry for the slow response, apparently I hadn't turned on notifications yet. Yes, I'm using full mechanical shutter to avoid any rolling shutter on higher shutter speed panning shots.
EFCS has no rolling shutter either and has no shutter shock for the first picture in a burst and significantly less shock for subsequent pictures.
This is the first I've heard of shutter shock, guess that's probably an IBIS thing as I never had an issue like this on my old 7D (where I'm coming from). I'll give electronic shutter a shot, hopefully that fixes it.
On your 7D you could enable 'silent shooting' to get EFCS, it improved my macro shots a lot. When shooting through liveview on a 7D you get EFCS by default, and no mirror slap. Shutter shock was a thing, but mirror slap was an even bigger issue. The extra weight of the 7D compared to the R7 also helped with dampening the effects.
Anyway, it looks like every Canon IS system, be it in-lens or in-body, handles shutters speeds roughhly between 1/60s and 1/160s badly. You'll see sharpness increase with faster speeds (as you'd expect), but also at slightly lower speeds.
The EF600L III owners created enough noise for Canon to send out a lens firmware update to make it better, but that has been the only time Canon did anything to acknowledge or improve this behaviour.