Strange image shake on R7

Alastair Norcross wrote:

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. 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.

Thanks!

EFCS should be your default setting (there's a reason why it's the default on the R). As regards e-shutter, remember that rolling shutter only affects certain kinds of shots. I've taken many thousands of shots in e-shutter on my R7 (and M6II) without any distortion at all. In fact, I think my total number of shots affected by rolling shutter distortion is under 10. Panning is one of those situations, if there are vertical lines in the background. If there aren't, you might be OK. Fast-moving subjects can show distortion, but it all depends on the direction of movement and the shape of the subject. It's easy to panic about rolling shutter, because it's the current stick with which to bash cameras (like DR used to be). Once you really understand how it works, you can have a pretty good idea of when you might be affected, and when you won't be. I like to use e-shutter as much as possible, to avoid wear on the mechanical shutter, and for the silence. But EFCS works really well too. There have been some reports of some shutter shock with EFCS in high speed (15fps) bursts. I've never experienced it, but I'm usually shooting 8fps, not 15fps, in EFCS (I just don't need 15fps usually), and I'm pretty much always shooting much faster shutter speeds with fast burst rates. I have a really hard time imagining when I'd want to shoot 15fps at 1/80. If I want that high a burst rate, it's for fast-moving subects, so I also want much faster shutter speeds. I'm sure someone will come up with a scenario for shooting 15fps at 1/80, and then they'll claim that that is also the most common shooting scenario for them, so any camera that suffers shutter shock with EFCS at 15fps 1/80 must be completely useless. That's just the nature of these forum discussions. The other thing to remember about shutter shock is that it seems to be highly lens dependent. Maybe the reason I've never seen it on my R7, even when I've specifically tried to induce it (by shooting full mechanical at 1/60 and 1/80), is that my lenses don't suffer from it.

Thanks for the insight. I think my first few times shooting with the R7 may have just been in the sweet spot for shutter shock. I had definitely bought into the e-shutter bashing hype and didn't even give it a try, but this thread has caused me to do a little more reading on the EFCS vs electronic vs mechanical. I do shoot at airshows from time to time that might be subject to rolling shutter, but I'll have to experiment with whether my shots actually have any perceptible distortion.