Lasers can damage the Canon 5D Mark II
Good to know. Be careful kids!
“Lasers emit concentrated beams of light, which can heat up sensitive surfaces (like the eye’s retina) and cause damage. Camera sensors are susceptible to damage, similar to the human eye.
For large scale shows, such as on a televised concert, laser show producers work with clients to avoid TV camera locations and video projectors (ILDA Members, see this page for details). However, it is not possible for laser show producers to be responsible for all cameras and camcorders which might be at a show.
Therefore, if you attend a show as an audience member, you should take reasonable precautions not to let a laser beam directly enter your camera lens.”