I've been working (yup you heard that right) with the very humble Sony A6000 for 3.5 years now. On land and underwater. Early 2020 is when I'm finally making the switch to full frame. I shoot images and video and will always try to get both on every dive.
If images were my only consideration. Right now, today, I would buy the Sony A7riii, Aquatica housing, Sony 28-70mm 3.5-5.6, with Nauticam WACP1.
Reasons:
1 - I've spent a long time using and mastering the Sony menus, and don't want to spend ages 'learning' another system.
2 - Sony AF is great (IMHO), yes I'm even happy with the A6000 AF.
3 - I'm invested in Sony lenses (although if I wasn't its easy to adapt).
4 - I'd prefer the Aquatica housing over Nauticam because it's smaller (female with small hands) and looks indestructible (only yesterday my friend had an issue with his 1 Yr old Nauticam housing video button spring going caput). Despite this I'll buy the Nauticam as there is no current way (that I know of) to adapt the WACP onto Aquatica housing (not sure if that's a deliberate move by Nauticam or there is an adapter in the post?)
5 - although the WACP is hugely expensive, when I add up the cost of how much it would cost to get wide, medium and close, with different lenses and ports, it's not hugely different in the end (especially given the savings on lens costs as I just paid £100 for the 2nd hand Sony 28-70 kit lens that coupled with the WACP gives astounding IQ).
6 - I live in Thailand and I can get Nauticam housing serviced here without having to send it, or take it, out of the country (consideration re housing).
7 - Sony A7riii is 42mp which I think is almost perfect (I reckon 36 would be the ultimate sweet spot), more than enough and probably at the limit of being able to work quickly with files and storage in terms of computer capabilities.
However (and I know this is a bit off topic, sorry my bad) this isn't my only consideration. I have the major issue of video which is the one thing holding me back from the above system.
I am one of the faithful (or foolish, depending on your views. Right now it's almost akin to believing in the tooth fairy!) holding out for the Sony A7siii. The reasons? All of the above. If it fails to materialise in the next 5 months, I will go with the Sony A7riii.
Common sense in terms of video (sorry again my bad).. I should be looking at Panasonic S1H but points 1 and 2 above are my main reasons (albeit not particularly valid) not to.
PS - If money was not a consideration, I'd get the WACP2 instead (but I'm not convinced that split shots and focusing above the water is worth an extra $2k-ish).
Ill submit this post and also send a copy to Santa, you just never know!! ;~p
PPS - This is just my opinion/thoughts but I reckon in the same way that mirrorless has shaken up the DSLR market (like I say just my opinion) I think the engineering behind the WACP is the way forward. If it wasn't for cost and weight it would have had a lot more interest.
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