Just mentioned to one of the technicians from a company I work with that I was getting my 350d on friday. He asked what lenses I was going to buy and we eventually got on to EF and EFS lenses. He briefly explained about the 0.6 magnification rule and left me feeling than a dog that had been shown a card trick. As far as I understood it, the EF lenses are the older/film lenses, and the EFS lenses are designed to run with digital SLR's because the sensor is 0.6 of the size of a 35mm frame? Is this correct and what lenses should I look for. I wouldn't mind a decent mid ranger which gives good portrait/snapshotting but has a decent zoom. This way I don't have to carry a great deal of lenses when I'm on the move. Failing that I wouldn't mind a decent macro lense and a decent zoom lens... what ya reckon? He also said alot of people are selling off their old gear on ebay without realising the lens is still worth a bomb and that I should look into it.