Tutorial & Video and the Secret
1. take a cool cup to capture
2. fill it with coffee allmost till the edge
3. focus the camera manual on the glass
4. be shure you've got a short exposure time (high iso makes that possible)
5. set the camera on burst mode (continuous shooting)
6. grab a tiny heavy object like a egg or something like that.
7. press the shutter and drop it! Making of on Vimeo