Originally posted by 0rangepeel That said, I'm curious if anyone knows what the Composition tool is for? It looks like it offsets the sensor using the SR system, but I'm not quite sure why anyone would want to do this.
At the K-30 product tour, the presenter showed that feature and gave us an example of how it can be useful in a real situation- taking macro shots. You've got everything set up; your camera, lens, tripod, lighting and you don't want to move everything to change the composition. Instead, you use the composition tool to move the sensor to the left, right, up, down, until you get the composition that you want.
I believe he also said that the K-30 is the only camera (of one of the only) you can do this in because it has in-body shake reduction that allows the sensor to move.
I found this pretty cool.