Originally posted by Canada_Rockies If you use the 2 second delay, the mirror goes up at the time you press the shutter release. Most, if not all, the shake in the camera is due to the mirror, not the shutter which is very light.
Originally posted by Marc Sabatella I guess what I'm saying is, it might be common practice on cameras with no SR, but it's really not when you have SR. I'm not saying it couldn't perhaps provide some tiny advantage, but it would be pretty darned small compared to the advantage you get just from using SR with a normal shutter release. As for the mirror slap, it's the *return* of the mirror that causes most of the vibration you feel, and that happens *after* the picture has been taken.
So anyhow, sure, sounds like it could potentially be useful to allow SR with timer, but I think the advantage would be far less than you imagine comapred to simply using SR with normal release.
Thanks guys. I realize it is the mirror slap which causes most of the shake when depressing the shutter, but there is also some slight movement from the actual depression (more so on lighter cameras, less on those with some 'mass' to them).
I didn't do any testing or comparison shots, but it just struck me as a little odd when I read it in the manual. I can understand the assumption that if you are using the timer or remote, the camera is most likely on a tripod/support - I would just rather be able to manually control when SR is on or off. Oh well, I guess I have to get away from my old Olympus ways.