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I am disappointed that you need a diopter for even basic macro this is asking a lot as you have to take the lens on and off during the dive
However once you have the lens the set up works very well
The quality of the image is super no complaints there
Hi Isbal
The Fix M67-ADF Pro needs a modification then it can take also the Inon UFL165AD. I have a new one I bought never been in water and already modified with an acrylic spacer. You need to step zoom to 35mm but then all is perfect
Otherwise with that adapter you can use an Inon UWL-100 28AD no vignette but dome options is expensive, you need to buy the Inon ring to accept the UCL165AD I would not recommend this better to use the UFL165AD and use the modified adapter
I am now selling the RX100 rig if you want the adapter I can sell it to you at the same price I bought it for plus shipment including the spacer ring let me know
I am also selling my Nauticam housing if that is of interest and the RX100 itself it is a great camera for pictures but no so good as I expected for video which is what I do