For subjects moving through the DOF quickly: I consistently got sharp pictures with K 135/2.5 and snap in focus of people running towards me. As for unattended pictures: I've set a macro rig with flash pointed towards a flower and took care to have the central AF sensor covering an out-of-focus area. I left the camera set on continuous shooting and had the shutter locked on trigger by the remote cable release. An hour later, the whole film was exposed. All pictures were of full-framed bees, and only a couple were not sharp. I think one was interesting enough. I guess it's a good scientific tool but that's all.
Note: in all cases the day was bright enough; the AF sensor needs good illumination for snap in focus to cope with fast moving subjects, just as genuine autofocus needs too. Servus, Alin Doug wrote: DF> Unfortunately, ones that are moving through the DOF slowly, but across DF> the field of view quickly, are the same ones that the AF has a hard DF> time catching as they go by. :-(
