The light rotation on the DLRC website is way too fast. I just downloaded the nuTilt app on my phone, and I really like it. You can control the lighting by moving your phone slightly, just like holding the coin. There are about 1000 coins in their gallery to view to test it out, and you can really get a sense of the luster. The images are about 30 to 50mb each, and it took about 10 secs to download a coin to view.