There some disadvantages of TZ 1 were improved, including the command dial can not be adjusted unintentionally, and so, unfortunately, the case is very weak. The camera slipped out of my hand and I accidentally hit of about 25 cm on the ground. Since then the battery cover opens automatically and frequently on the opening slide they can no longer be opened but the housing must be pushed to the side. The TZ1 I had with very many adventurous activities such as traveling in South America, mountaineering, ski touring and mountain biking. Just get out of your pocket it, turn and pull the trigger! Unfortunately, the dial has frequently adjusted.