1. 7D / 10-20 sigma for dolphins and model under water / housing
2. 7D / 10-20 sigma for horizontal line between under and surface. / housing
3. 5D MII / 35-105 canon for model above water.
4. 7D / 10-20 sigma for background.*
*Part of the Sky is also made with a image bank photo
All together in PS6.
Hope you like it