Two days ago I bought a new Lumix G2. I've made some photos (up to 25) and copied them on my PC. What was weird for me, the photo # starts with 220 so it's not that new (LCD was dirty). I read that sometimes after assebling they make 200-300 photos to calibrate the shutter. Is that true and how it looks with Panasonic in this case? And can I make a complaint and demand a return if the camera was supposed to be new but it actually was in use?