I'm not talking about the high ISO kind of noise. I've been going through some of my photos and I've been noticing a bright spot in the same place on all my images. It's only noticeable if you zoom in to the photo's actual size. I've posted a picture of it. I know this isn't general noise and I don't think it looks like dirt on the lens or sensor, so does anyone have any idea what it could be? I think it's a hot pixel on the sensor. Is that normal for most cameras or is it a problem?