In my K-5IIS manual it says "If the Auto Power off function turns the camera off during Interval shooting, the camera automatically turns on again when the shooting time approaches". It also says "If the subject is not in focus with the focus mode set to AF.S (Single mode) or if the [Interval] setting is too short and the previous image processing cannot be completed before taking the next picture, no picture may be taken"
I just wanted to point out those words. Maybe if you adjust your Auto Power off, that may give you better operating during your tests/shooting. If you are shooting in AF.S mode and the subject moves (such as stars) from your original focus, maybe the shooting could stop per one of the manual statements I mentioned.
That really is not a bad shot. I know the light around the buildings is showing, but it gives it the "real looking" effect and with the trails, which are not bad, it looks sort of like an interesting variety in one picture.
Last edited by C_Jones; 01-30-2016 at 08:57 PM.