I am fairly new to UW photography, but I've been practicing a lot lately with a new setup I bought. I was hoping you could give me some advice regarding the o-ring in the dome port. Some people I've talked to say they take the dome off after every dive to clean and lubricate the o-ring, while others say that is not really necessary if you do not change the dome out for another port (so as long as it stays on the housing, there's no need to clean and lubricate the o-ring).
Which method is best? I don't mind taking it out after every dive, but if it's not really necessary I prefer to leave it in. Don't know if this is relevant information at all, but I use a Nauticam housing for Olympus EM-1 mkII with a ZEN 170mm dome port.
Thanks for any advice you can provide!