EF135mm F2L USM Instruction Manual
Page 3
... put the lens into an airtight plastic bag before taking the lens from concentrating the sun's rays, which could cause a fire. This equipment has been tested and found to comply with the instructions, may not cause harmful interference, and (2) this equipment does cause harmful interference to radio or television reception, which...
... put the lens into an airtight plastic bag before taking the lens from concentrating the sun's rays, which could cause a fire. This equipment has been tested and found to comply with the instructions, may not cause harmful interference, and (2) this equipment does cause harmful interference to radio or television reception, which...