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Hi everyone. I am on my way to spend more and more time in 60-100m range of depth in sea with my Nikon D850 in Sea & Sea housing and I am curious what are some extra considerations about the gear, tips and tricks and/or whatever knowledge that could be useful to make sure my kit survives :-) and I get good shots. Example: 1. Electrical va optical cables. I use electrical. 2. How big vacuum to set? I started pulling out more air with pump when going deep. 3. What do you think of survivability of extra connections like bulkheads for strobes, vacuum ventil etc 4. What about condensation inside and temperature ranges? 5. Acrylic va glass dome ports in terms of strength and depth rating 6. Depth rating of viewfinder assemblies? 7. How much should I trust that small plastic window on back of the housing. Looks vert fragile even if housing is 100m rated 8. What does it really mean 100m rated? Tested to 150m so definitlly good on 100m? 9. What about ambiental exposure in those low light conditions down there. Sometimes it is pitch black and no blues. How far to go with ISO and get still a good compromise on size of the grain/noise And so on and on. Maybe for somebody this is a routine and some proven tips are just around the corner. Thanks, Marko