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Thank's for your comment, I didn't experience any issue about the waves, etc. But I always used it with flat sea, if you have to take splits the waves are a pain in the ass. What I use to do is to put underneath the housing any kind of flotation device ir order to balance the camera the more I can, if not, it tends to submerge the housing and leave the dome above, which is difficult to manage and very tiring for the hands. I deal with this dome the same way any other port, I make the vacuum and leave it the more time possible before go into the water, it never loosed it. But to be absolutely honest if I had to do it again I would look for any way to block the ring which connects the dome with the housing. The fact it's threaded in addition to the leverage exerted by such a big plate has give me more than a scare when I carry the rig because it's easy to unthread the dome accidentally. But I have plans to make any kind of blocking latch, it's not a big deal to install it

I also thought the same, but after choosing the size you have to choose the type of material, between aluminium or acrylic and the only option appearing is end cap, So this leads me to guess that you can choose only the rear cap and in the front the only difference is the flange they send with the enclosure, but the dome port is always 4". I hope I'm wrong.

I have tried to find it on their web, but I didn't. What I have found is different enclosures in 4", 5", 6" and 8", but when at the dome end of the enclosure looks like there is a flange which reduces from the 8" enclosure to the 4" dome. I also have found a flat "macro" port which is 8" wide. Looking at the Panasonic camera integration for cinema, when i read about that and looking to the pictures it looks like there is a finished dome port to fit the housing, but when I try to buy it I don't find it. I will have to ask to my dealer, he knows about bluerov way more than me. In fact my one is an integration with Poseidon Robotics which converts from battery powered to AC current, which gives me unlimited bottom time.

I didn't see this until now. Yes, they are perfect for the work. I also have a Bluerov and the dome ports are cheap, they are around 3 mm thick, I have go with the rov up to 100 meters depth with no issues. They are exactly the same that I ordered to the plastic manufacturer. If I knew about that domes before buying the bluerov I would used it. That said, I didn't found out a big lack of definition in the corners of the image when I used the 4" dome port with the DSLR, but once I bought the FF Mirrorless this lack of definition has become a lot worst. I have ask here in the forum and to two professional underwater photographers that I am friend of, the issue is the dome diameter, 4" is to small, so now I'm using a glass 5,5" and it's not perfect but is good enough. I'm always talking using it with the Canon 8-15 fisheye, with and with no teleconverter.

Well, if you are David Doubilet, working for National Geographic you probably have a lot more of resources that any other current underwater photographer. I personally know pretty well Manu San Félix, another National Geographic explorer and I have personally seen the tones of equipment they carry, both for diving and for taking pictures and video. There's no secret, money is the key.

I finally managed to take pictures of the big dome. My goal when i start thinking about doing it was that me and my two dive buddies can use it. At that time I had a Sea&Sea housing, and my buddies Nauticam and Subal each. So i had to make a system that can fit in 3 different housing. I first contacted to a plastic manufacturer specialized in manufacturing custom domes for security cameras and this sort of things. I told him the exact measures of what I wanted and in 3 days i had it, I can't remember exactly but the price was really inexpensive, something like 50€. After that I went to a friend who is miller turner, I explained him what I needed and he did it in aluminum, after that i sent the aluminium piece to anodize, again, this was inexpensive, about 50€. After that I assembled the dome with screws, for sealing it the miller did a groove in the edge of the aluminium where I poured polyurethane. For the fitting to the housing, I took a macro port of each housing manufacturer and again the miller turner cutted the front part and machined a male thread and a groove for an o'ring, the same thread is the female in the dome plate. Here you can see some pictures of it and the first picture that I took with this dome, but to be honest I haven't used it that much

I have done my own dome ports, 4" with 3 different plexiglass curvature, I have change the plexiglass to a 8" old Sea&Sea dome port, for which I had to modify the fitting system,and a 17" dome port, which I don't have any picture right now and I lent it to a friend. When I have it again I can send you pictures, but basically is the same design of the pictures above.

I don't use to shoot macro, not the kind of pictures that I like the most, so grab the camera this morning and take just macro shots it's been like fresh air to me. Water in 15ºC, no sun, and flat sea. The best, as always, share with the friends the after diving at the bar with a couple of beers.

Too much time with no diving, so we went to the water as soon as the water calmed down a bit. And after we went to the bar 😁

After several weeks of storms in Ibiza we finally managed to dive again, not the best spot on the island, but as always the best was laughs with the friends after diving.

I personally will not buy again a Sea&Sea strobe until their reliability and service become trustworthy. I have had the YS120 which were great, after them I had YS D1, YS D2 and YS D2 j, all of them failed with no reason, some of them while underwater, some of them checking the rig on land with a low power. And the response for Sea&Sea was slow and non satisfactory. For the moment I can't trust in them. I have bought th AOI UIS P1 strobes, about 850 euros each. I have test them in a 35 dives in 9 days trip. They were great, nor a single fail, and with only 1 battery set I have run all the trip with not a single shot missing. They are not perfect, I don't like the light temperature, I don't like the power knob and I don't like the way to switch them on. But they works in HSS with your Sony and with the AOI trigger, and lastly also with the Turtle trigger. With 150 watts is enough for wide angle, even the sync speed of your camera is only 1/160

Thank you all for the answers, you've been really helpfully. I think I'm going to bay a Surface Pro. I'm ashamed but I didn't know that those kind of pc existed. The size is not that big comparing with a tablet and I don't need to learn Lightroom mobile. I am currently paying The LR photographic plan, which includes 20 GB cloud. I think is not enough for everything I have to do if I work with a tablet. Anyway my plan was to buy a keyboard and a pencil for the tablet, so the size is going to be pretty much the same.

I'm a bit tired of traveling with my laptop and I would like to downsize a little bit, so I was thinking in using a tablet, but I don´t know how LR works with it. I don't need to edit with IA, just basic adjustments. My ideal is when on a dive trip, after the last dive and with a beer in my hands I download the pictures to the laptop well organized and with keywords to find everything, sometimes I order another beer and i start doing basic adjustments to a picture, not more. And when finally at home I move the files from my laptop to the NAS, everything trough LR in order to don't lose the files. I would like to do the same but with a Tablet. I don't know if this is possible and what kind of tablet should I buy, I don't want to spend a lot of money. Also the tablet must be Android.

I'm currently using an Isotta housing for my Canon R6 mkII, I'm really happy with it. I find that the ergonomics are great, and in the inside is far more simple that the Nauticam for example. But in terms of size, comparing directly with the same camera housing from Nauticam which my dive buddy owns, I don´t find any difference. The fact of it's an european brand for me is a plus, the service can be very quick. And you can use directly with no conversion rings the Sea&Sea ports, and if you have Nauticam ports you can unscrew the lug and fit a Sea&Sea lug. So you can easily use Isotta, Sea&Sea and Nauticam ports, furthermore they also manufacture conversion rings for other brands like Aquatica. Which only protrude 0.5 cm from the housing, so it's not a big deal for the lens setting. Comparing with the Aquatica Canon 5D mkII and the Sea&Sea Canon 50D which I also have I really prefer the Isotta. And, their basic flash trigger since a year ago or so is directly compatible with HSS which I don't use but is always a plus.

Well, as we say in Spain "mi gozo en un pozo". For me, buying this lens only to produce circular images doesn't make any sense. I guess Canon is not going to do it, so to use in underwater photography we need a third party manufacturer to produce a multiplier. I also have noticed that this lens is quiet long, so at the day is the same size that the 8-15 with the RF adaptor ring.