Canon 10 x 42 L IS WP Instruction Manual - Page 5

Maintaining Waterproof Property The binoculars are waterproof. To make full use of this performance, make sure to check the O-ring in the battery chamber and the contact surface. If you close the battery chamber cover when it is covered with sand, hair or other materials, the waterproof property will be lost, allowing water to enter, resulting in malfunction. O-ring 1 Check the O-ring. zzMake sure that the O-ring and the contact surface are not distorted or covered with dust. Contact surface 2 Clean the O-ring. zzIf there is dust on the O-ring and the contact surface, use a damp cotton swab or similar material to remove the dust. Cotton swab (commercial product) zzDo not forcefully pull or extend the O-ring. zzThe O-ring is specially treated. Be careful not to apply grease or allow oil to accidentally come into contact with it. zzDo not remove the O-ring. That may result in scratching the surface, allowing water to enter. zzIf the O-ring is broken, cut or distorted, or if more than two years have passed since you purchased the binoculars, bring them to a Canon Service Center to have the O-ring replaced. It is recommended to replace the O-ring every two years (for a fee). zzIf you use the binoculars in a sandy or dusty environment, it is recommended to replace the O-ring every year. ENG-4