If you are shooting a Canon DSLR, and are wondering what lenses that will be the best investment now and in the future you might want to check this out. No more x1.6 coverage lenses for me. http://www.digit.no/wip4/detail.epl?id=59456 Quoted from the article: "Reading between the lines of the specs and press release, you may discover that the EOS 5D is the first model in a new strategy from Canon, in the direction of full frame image sensor in many cameras to come. They have now solved many of the obstacles and production cost barriers, first and foremost related to the lowpass filter in front of the CMOS. Brian Worley, product manager of D-SLR cameras at Canon Europa, said that it's a long way before all EOS models will have a full size sensor, but Canon's aim is to equip all models, except the cheapest, with a 35mm sensor in the future."