The student detaches the lens from the DSLR.
text: That is the lens cover.
text: Please detach the whole lens.
text: To detach the lens, you should press on the button that's on the right of the lens.
text: So on the left of the lens. But it's on the same face than the lens. The lens' case.
text: No, it's on the right of the lens.
text: You should see a button. you can click on it and then rotate the lens out.
text: The truth.