Originally posted by tdvanniekerk I played with the Interval Composite (Average Option) on my 645z and was pleasantly surprized with the results. Pictures of water are softer (same effect as a long exposure effect) but colour tone and dynamic range seems more rich. I don't have the means of measuring it, just the way it looks in post. Sharp edges that don't move between the shots, also tend to be sharper.
Would like to hear some comments from others that have used this on-camera feature.
I've played with this on the K-1 a little and noticed this:
"Interval composite average" does a nice job on moving water and street scenes as long as there's enough frames to avoid it looking like a simple double-exposure. The only caution is that over-exposed objects on a dark background (e.g., bright white water droplets at a fountain or waterfall) turn into strange uniform-gray spots which might look stupid or surreal depending on one's goals.
"Interval composite bright" looks like an interesting way to do star trail and meteor shower images (keep the time between frames short to avoid dashed lines) but does a bad job of street scenes (a person with a light-colored top and dark pants becomes a floating torso) and white water (the scene simply fills in with nothing but bright water).
I've not tried "Interval composite sum" but assume it's effects would be somewhere between "average" and "bright".
It's definitely a useful feature in the time-lapse photographers tool chest.