8 hours ago, TmxDiver said:
I think you and I have the same camera (a6400)?
A6300 in my case.
8 hours ago, TmxDiver said:
I personally don't try to remove the WWL-C underwater. For any given dive, once it is on, it is on. It can obviously be removed, but I almost exclusively shoot wide angle so I don't worry about it. I mention that because I didn't buy bayonet holders.
A large part of my diving is in Thailand, and on many sites there, you simply don't know what you're going to get. At Richelieu Rock, I can see a group of harlequin shrimp, or an ornate ghost pipefish, turn around, and there's a big ball of trevallys or barracudas.
5 hours ago, newdiver said:
However your requirement for two holders, are you going to be using the 16-50 behind a flat port? What is the use case for it if that is the case? I have only accounted for one holder to hold either the WWL-1B or the diopter.
Aside from what ChrisRoss said (I was hoping for that experimental anti-covid gene-therapy that everyone is saying will mess up your genome would give me something useful, like a third hand, or a prehensile tail, but nooooo), a bare 16-50mm behind a flat port is useful for shooting skittish fish from a moderate distance. For example, this is a very significant crop of a juvenile emperor angelfish shot at 50mm through a dome:

4 hours ago, newdiver said:
oh I see, I used a flip holder previously and it didn't occur to me. Thanks for that
I'm pretty sure a WWL-C is too large and heavy to be used with a flip holder, especially a dual one.