[. . . ] Attaching the MC protector Preparation: Close the flash and turn off the camera. [. . . ] Rotate the MC protector slowly and carefully when attaching or removing it. Do not tighten the MC protector too much when attaching it as you may not be able to remove it later. If the surface of the MC protector becomes dirty, use a commercially available blower brush to remove any dirt and then wipe it gently with a dry, soft cloth. Do not use benzine, alcohol, paint thinners or any other solvents to clean the MC protector as it may discolor or damage it. [. . . ] Do not use benzine, alcohol, paint thinners or any other solvents to clean the MC protector as it may discolor or damage it. [. . . ]