On a recent one-to-one, we were photographing with telephoto lenses and I accidentaly shot an image after Live View had timed out. Upon viewing the image at 100% magnification on the back of the camera I noticed it had a little camera-shake, which given the still day and sturdy tripod, was something of a suprise. I realised that Live View had timed out, so activated it again and shot another image.
This highlights several things. Firstly the importance of reviewing image while you are in the field, so failures can be rectified. Secondly, being concious of the potential issues for a given situation. Long lenses and those with built-in image stabilisation, always require care, to ensure a sturdy base and checking that IS or VR is switched off.
As you can see from the image, the difference in sharpness is significant, the difference between a rejected image and a workable one, in fact.
I shoot with a DSLR, so habitually use Live View to raise the mirror up, so that when I fire the shutter, the mirror mechanism doesn't add vibration to the camera setup. It's also worth noting, that the higher the resolution of the camera, the more noticeable the effects of camera shake will be.
One of the main advantages I am looking forward to on my inevitable move to a mirrorless system in the future, as the name suggests is the lack of a mirror, making technical failures such as this one a thing of the past..
The left hand portion of this image was shot with the camera in Live View, (where the mirror raised before the shutter is pressed).
The right hand portion was shot with identical settings, other than the camera not being in Live View, so the mirror raised as the shutter fired.