I owned a copy, which unfortunately had an accident (fatal fall on tiles). The repair cost almost the price of the lens m has "forced" to buy the same ........... For despite its price, weight, and the inconvenience we have to carry around such a thing in touring / travel / mountain DMKII coupled to May 1, the images made with this TV are superb (dive, brightness, vignetting, sharp edges), and have nothing to do with those of small zoom so-called journey, not very terrible in comparison. I know, because I have also this kind of goal we are reassured because of the price, weight, bulk, but hey, we still regret not taking the Canon zoom ..... We must boost, tamper with excessive to make them acceptable. None of this with the Canon 28-300mm. Well and good craft. This is serious, solid, it does not plastoc. For those who are afraid of the pump system and the risk of introducing dust suction in mechanical or even in the heart of the objective, in 4 years, not the least little problem. Note that the weight is sometimes an advantage. Through inertia (burst mode and stabilizer), we made clear pictures with a small sensor. The 300 becomes a 450mm ...........