I took advantage of the underwater housing with a Canon 500d with a 28-105 L lens. Zooming there was unfortunately no longer there because of the flexible body of the housing Beginning to end. Otherwise, the operation is satisfactory, the best you can meet all the necessary adjustments before the dive.
Which could not be any question of "diving". I took it on vacation only while snorkeling and for the occasional plunge to the ground. Granted that is extremely cumbersome, since you also have to push it down in your own body, both the air in the housing than to give only snapshots are possible.
Overall, I'm happy to have gained me for the dives no expensive equipment. Underwater photography is after all more for those who are stuck in a diving suit and have an underwater housing with lighting. Because that is definitely a weak point! My personal tip: Buy yourself a cheap underwater camera with flash. So you ride better than with a SLR underwater housing in any case.