I took a few pictures earlier trying to find the best light angle and when Google backed up my photos it animated (their term) them. I thought it looked pretty cool.
I think your penny is having a seizure. It looks very cool. My Google Photos app does the same to me all the time. My favorite is when it does a timeline of my coin pictures, with music and arrows separating the different times during the day that the pictures were taken, as if I had taken pictures while on a trip instead of just a bunch of coin pictures in my office.
Funny. Though you could make use of that feature to show luster on an uncirculated coin quite nicely.
If you light the piece properly and take enough shots showing the steps of the light rotating around a piece, despite the amount of labor it would take to image each coin, an animated GIF file can help to show a coins luster quite well. Photobucket has a GIF making tool available as well.
