Having an absolute nightmare with this one as Googling the question comes back mixed results.
I do real estate and interior photography, as such I'm always tripod mounted, manual focused, trigger release firing off my shots. I use live view an awful lot to help compose, expose etc.
Whenever I shoot in live view, I manual focus on my subject, its tack sharp on the screen, hit the cable release (being careful to remain still etc, and the picture comes out with slight movement blur (at full image zoom - say, a tap), nowhere near as sharp as the live view feed i focused with. There seems to be a hefty mirror slap just prior to the image being taken, which contradicts Google's results with answers saying its only the shutter that moves during live view exposures.
It also seems evident that this is the case, because if i mount a flash on the camera and do the same thing, the slap comes first then the flash triggers. This is using first curtain sync also.
Can someone clarify for me if I'm doing something wrong here or something? Im not using cheap tripods or heads or anything.