Beautiful UV filter, very good quality (but this is the Canon). Attaches smoothly on Canon EF-S 17-55mm f2.8 IS USM. For the owners of this objective, the installation of a filter would avoid the appearance of dust in the lens (known defect of some objectives of this type). For my part, having traveled several forums (including PlanètePowerShot), I decided to equip my objo at the time of purchase and especially a quality filter, so the original Canon filter. For now, I have not seen any degradation of the image of some kind with the filter in place. So happiness. Fast and flawless service delivery from Amazon!
