Canon EF 11-24mm f/4L USM User Manual - Page 3

Safety Precautions Handling Cautions ●● If the lens is taken from a cold environment into a warm one, condensation may develop on the lens surface and internal parts. To prevent condensation in this case, first put the lens into an airtight plastic bag before taking it from a cold to warm environment. Then take out the lens after it has warmed gradually. Do the same when taking the lens from a warm environment into a cold one. ●● Do not leave the lens in excessive heat such as in a car in direct sunlight. High temperatures can cause the lens to malfunction. Usage Precautions ●● When using this lens, please check the Canon website for the latest camera firmware. If the camera's firmware is not the latest version, be sure to update to the latest firmware. ●● For details on updating firmware, please check the Canon website. Safety Precautions ●● Do not look at the sun or a bright light source through the lens or camera. Doing so could result in loss of vision. Looking at the sun directly through the lens is especially hazardous. ●● Whether it is attached to the camera or not, do not leave the lens under the sun without the lens cap attached. This is to prevent the lens from concentrating the sun's rays, which could cause a fire. ●● The EF11-24mm f/4L USM features a large diameter front lens element. Please be careful because this large front section will extend past the bottom of some cameras. Conventions used in this instruction Warning to prevent lens or camera malfunction or damage. Supplementary notes on using the lens and taking pictures. ENG-2