Hi @cezary-io, i used a Ikelite underwater housing and strobes with a canon 60d dslr and a tokina 10-17 wide angle lens. Camera is a little old now but still good enough for me and upgrading often is a expensive game.
This is my setup with a canon lens fitted but no port on front but should give you a idea of what i'm playing with.
Sorry for delay getting back to you but last few days have been hectic securing the dive centre and moving valuables, we are now on lockdown although no cases are known of on the island at present. Be safe dude:)