These pictures have been shot with differents cameras in differents periods.

          - A Bridge Nikon 8400 with Ikelite housing and SeaLife strob.

          - A digital SLR Nikon D80 with Ikelite housing and external Inon strobe ZD 240.

          - A digital SLR Nikon D300 with Aquatica housing and Inon strobe ZD 240.

My opinion:  The bridge is an excellent camera to start and learn to adjust your apertureand your speed leaving the automatical mode. Each of these camera have given to me total satisfaction. It is not the case of the Ikelite housing... They are made to be used not many times a year. Those of you who dive over than 100 times a year will meet damages for sure. That's NOT a professionnal equipment but the price is attractive... Aquatica housing have a strong aluminium building which give you assurance to protect your camera. You will only have to put silicon on the ring and spend more money, of course.

All that is just MY opinion...!