The student detaches the lens of the DSLR.
text: That's the lens cover, please put it back and detach the lens, the lens is the whole cylinder.
text: To detach the lens you should press the button that is on the right of the lens.
text: So if you look on the face of the camera where the lens is, so not this one, if you turn it around, yes. There's the button on the right of the lens.
text: And now you can rotate the lens out.