Recently my drone went for a little swim. Body all dry and up and running again. Condensation/water in the camera/lens area. I have taken lens out and also put gimbal in rice to dry. Where might I be able to find a replacement lens for my Phantom 4?
If you mean there is moisture between the lens elements you might be able to dry it out with a vacuum chamber. You could rig one up if you have access to a vacuum pump like those used in refrigeration work.
Another alternative might be to place the lens assembly in a sealed container with some silica gel dessicant, but it will take some time but would be more efficient and speedy than just rice. You could speed it up with some mild head applied. Or you could place the lens assembly in a stream of warm air from a hair dryer on low setting and let it go for a number of hours.