A friend, professional photographer Jann Lipka, has created this fine and concise video tutorial showing an example of how to use time and ‘available light’ to your advantage when creating product / studio shots.
“My Name is Jann Lipka, I’m a professional photographer from Stockholm, and I wanted to show you how to make use of your cell phone in a little bit different way…’
http://vimeo.com/2536591?pg=embed&sec=2536591
This video tutorial is also a part of this blog post on strobist which is about using lcd lightpanels of various kinds for illumination.
Here’s my first try, using my cellphone’s light, Canon40D, 30 second exposure, ISO 125:
Imaging Professional 