I have noticed some strange behavior on my 450D tonight. I was shooting some macro on Live-view(couldn't get low enough using the viewfinder) and I noticed that after my shots(approx. 2-second shutter speed) the sensor wouldn't flip up for a few seconds(on the order of 4-5).
I could tell this by listening to it. The screen would be black for a bit, then it would click into place and the screen would display the shot again.
I am mostly just worried this might be a problem. Is this normal? If it is normal, what is taking so long?