“Like the D5000, the Nikon D5100 has only one type of autofocus method in Live view, and it’s not the traditional phase-detect AF. The D5100’s only option for autofocus in Live view mode is contrast detection. This is a fairly radical departure compared to other camera makers.”
So there is very little I can do if I run the camera in live view, which was one of the main reasons for choosing this camera, it’s relatively light for a DSLR and it ports live view as an AV stream.
Even with a high ISO and a fast shutter speed this camera is not going to give me sharp shots if I use it for KAP with autofocus in live view if the camera moves during exposure- this explains why I have so few motion blur failures: Even a relatively small movement is enough to scramble the autofocus and ruin the exposure!
I am going to have to adopt a ‘fixed to infinity’ policy with this camera and only use Auto for close up work…and live with the losses!