Originally posted by iheiramo I have the opposite problem with K1ii. I try to set AF to spot, but feel that CIF reads from too large area. I have a much better hit rate with K30 when shooting sports. Too often K1ii seems to find a way to lock into background behind the target thought the center square stays on athlete. With fast moving subjects you really don't have time to see weather it locks on target or behind it while you shoot, so I've lost a lot of sequnces due to backfocus.
With a manual-focus lens "back-focus" is not a problem, which can be the attraction of using it.
Envisage a butterfly (or pair of butterflies, to get optimistic) flitting about in a flowery glade lit by dappled sunlight. An autofocus nightmare, at least in my experience. However, fit a manual-focus lens, set it to the sort of range to give an appropriate image size of your subject in the viewfinder, then effectively wave it all about with the shutter button pressed (or park it on a tripod with the cable release locked down). When something flies into the pre-chosen range the shutter will fire
Assuming the various other parameters such as depth-of-field, subject movement speed, sensitivity etc. have all been considered, something like an acceptable photograph may well be the result
With multiple focus points available to trigger the shutter, the need for having the subject absolutely dead-centre to trigger the shutter is eliminated!
No, I've not had a lot of success yet, but my incidence of "near misses" is a lot higher than it used to be, so I'm hopeful practice and a more suitable lens will improve things