Canon EOS Rebel T6i W Instruction Manual

271Whenever you set the power switch to <1> or <2>, the SelfCleaning Sensor Unit operates to automatically shake off the dust onthe front of the sensor. Normally, you need not pay attention to thisoperation. However, you can choose to perform sensor cleaningmanually, or disable it.1 Select [Sensor cleaning]. Under the [53] tab, select [Sensorcleaning], then press <0>.2 Select [Clean nowf]. Select [Clean nowf], then press<0>. Select [OK], then press <0>. The screen will indicate that thesensor is being cleaned. (A smallsound may be heard.) Although therewill be a shutter sound, no picture istaken. In step 2, select [Auto cleaningf] and set it to [Disable]. The sensor cleaning will no longer be executed when you set thepower switch to <1> or <2>.f Automatic Sensor CleaningCleaning the Sensor NowDisabling Automatic Sensor Cleaning For best results, perform the sensor cleaning with the camera placedupright and stable on a table or other flat surface. Even if you repeat the sensor cleaning, the result will not improve much.Immediately after the sensor cleaning is finished, the [Clean nowf]option remains disabled temporarily.