Tried a new way to clean my dive helmet camera lens and it actually worked
I was on a job in Mobile last month and my helmet cam kept fogging up inside the housing. I remembered an old trick about using a tiny bit of dish soap on the inside lens, but I was worried about residue. I mixed one drop of Dawn with about 20ml of distilled water and wiped it on with a microfiber cloth before the dive. The lens stayed clear for the full four hour shift, no fog at all. I was sure it would just smear. Has anyone else tried this, or do you have a better method for keeping that viewport clean?