Originally posted by fb_penpho Judging from relies so far, there does not seem to be a way of doing it with th K-S2. Yet another suggestion for Pentax, can't see a reason against it. Both components work, interval and CiF. So why not make the interval operate when the CIF is set on. You would not get an interval as originally intended. I imagined it would mean the interval time would be the time between the the last photo and ready for the next. The time waiting for the next photo is obviously dependent upon the point at which an object comes into focus.
I believe you get exactly what you want by using the wired remote in continuous shooting mode with CIF turned on. If something is in focus, it will keep shooting, if not, it won't. (Which is what the article linked above suggests, and it is pretty easy to set-up. You just lock the remote the rest is unattended.)
If you don't want THAT many shots of a subject -- say a bird that's sitting on a branch that just sits there a while -- but want a minimum delay of 10 seconds (or whatever) between each taken shot, I'm not sure how you'd do that. Possibly one of the wired remotes that has it's own inverlometer function with the camera set to shoot single shots (but with CIF enabled) might work, but it might not. What happens when the there is no in-focus subject for a long time and the interval trips from the wired remote? Will it be smart enough to know that a shot is still waiting on hold? Probably not. A more sophisticated set-up, for instance using Cactus laser triggers would probably be in order...