I have a dark colored smudge that shows up when light colored pictures (ex. sky) are taken. Do I have dust on my sensor? And if so, how do I clean or remove it? I have a Rebel T100 camera.
Should the lens be removed before or after powering up the camera? And after cleaning do you reattach the lens before or after powering down the camera?
Should the lens be removed before or after powering up the camera? And after cleaning, do you reattach the lens before or after powering down the camera?