Canon EF 300mm f/4L IS USM Instruction

Also see for IMAGE STABILIZER ULTRASONIC EF300MM f/4L IS USM: Instructions Instruction User guide Instruction

Contents

ENG-2a Safety Precautionsa Safety Precautions• Do not look at the sun or a bright light sourcethrough the lens or camera. Doing so could resultin loss of vision. Looking at the sun directly throughthe lens is especially hazardous.• Whether it is attached to the camera or not, donot leave the lens under the sun without thelens cap attached. This is to prevent the lens fromconcentrating the sun’s rays, which could cause afire.Handling Cautions• If the lens is taken from a cold environment intoa warm one, condensation may develop on thelens surface and internal parts. To preventcondensation in this case, first put the lens into anairtight plastic bag before taking it from a cold towarm environment. Then take out the lens after ithas warmed gradually. Do the same when takingthe lens from a warm environment into a cold one.• Do not leave the lens in excessive heat such as ina car in direct sunlight. High temperatures cancause the lens to malfunction.This device complies with Part 15 of the FCC Rules. Operation issubject to the following two conditions: (1) This device may notcause harmful interference, and (2) this device must accept anyinterference received, including interference that may causeundesired operation.Do not make any changes or modifications to the equipmentunless otherwise specified in the instructions. If such changes ormodifications should be made, you could be required to stopoperation of the equipment.This equipment has been tested and found to comply with thelimits for a class B digital device, pursuant to part 15 of the FCCRules. These limits are designed to provide reasonable protectionagainst harmful interference in a residential installation. Thisequipment generates, uses and can radiate radio frequencyenergy and, if not installed and used in accordance with theinstructions, may cause harmful interference to radiocommunications.However, there is no guarantee that interference will not occur ina particular installation. If this equipment does cause harmfulinterference to radio or television reception, which can bedetermined by turning the equipment off and on, the user isencouraged to try to correct the interference by one or more ofthe following measures:• Reorient or relocate the receiving antenna.• Increase the separation between the equipment and receiver.• Consult the dealer or an experienced radio/TV technician forhelp.This Class B digital apparatus complies with Canadian ICES-003.COPY