I have a Nauticam macro port 65 that I've been using for a year for the Nauticam OM-D E-M5 housing.
I've just noticed there seems to be water drop stain marks on the port glass. I've tried cleaning these out with soapy water, lens cleaner, and water/vinegar but none seem to help.
I don't think this glass is coated.
Anyone have a solution to get these stubborn stains out of the glass? Polishing with a glass polisher work?
Also, I'm pretty sure these marks are on the outside of the glass port.
I've attached photos of the marks. Saltwater stains?
Edited by xcetra, 17 May 2014 - 08:17 AM.