Just a short entry for today. I found this video at the Strobist's Webpage. You can learn here, how to clean the sensor of your camera yourself. The editing of the video is rater rough or non exisitng. You still can learn a thing or two. Follow this link to the Strobist's webpage. Strobist: Sensor Cleaning Demo
Don't forget to have a look at the Lighting 101. You can learn a lot here. This blog is one of my favourite blogs about photography.