Why are these marking showing up on all of my photos?
On every photo I take, there are markings that ruin my photos. They are sometimes colorful splotches, vertical lines, or blurry spots. How can I fix/prevent this?
The Canon EOS 5D Mark II is a 21.1-megapixel full-frame CMOS digital single-lens reflex (DSLR) camera with video recording capabilities.
The mirror being dirty CAN NOT affect the picture as the mirror flips up out of the way when a photo is taken. The mirror is only used to reflect the light into the viewfinder for composition. If you are getting vertical lines it could be a faulty card or card reader, the blurry spots are most likely dirt on the sensor take it to a reputable dealer for cleaning.