All good comments and here's some more......
Olympus TG-6 (newest model) has some great enhancements. Being able to zoom through a wide angle attachment plus already stellar macro capability better than many larger Mirrorless or SLR ILC cameras ( ILC = interchangeable lens cameras.)
The Olympus TG6 camera being waterproof gives many piece of mind. The lightweight well made Olympus housing is really good for the price.
The only downsides to the Olympus camera and housing are the Olympus PT-59 and previous TG housings have one back o-ring.
The housings are made in the same factory as
Fantasea housings for Canon and Sony compact cameras. But the Fantasea housings have
DUAL o-rings.
A back BLACK lubricated one and a flat white FRONT face seal like a GoPro housing. This has proved to be fantastic. You can also get a model with Vacuum system to pre-test the housing is sealed for $100 extra.
The Canon G7X II and III and Sony RX100 IV / V / VA models have a larger 1" sensor compared to the Olympus TG-6.
The sensor being larger is able to gather more light especially helpful for wide angle shooting.
Canon G7X II and III have great macro capability built in too. The Sony RX100 series while being a bit more expensive for the camera have incredible AF (AutoFocus) plus incredible HD video.
Either the Canon or Sony compacts can be set up for easy shooting. Canon and Sony models have expanded shooting modes you might enjoy as you grow as a photographer.
Full disclosure, I lead dive trips and have been a Fantasea dealer and actual user of Fantasea housings for 4+ years and they've been fantastic for me and customers.
The Olympus PT-59 housing has been used by people on my trips and folks have good success with them, especially macro shooting.
I just think the
DUAL o-rings of the Fantasea Canon and Sony housings is even better for just a bit more $$$$.
Just some more thoughts and ideas
David Haas
Haas Photography Inc.