The Blog about Fog
We are back with another YouTube Tutorial Video from our rep in Japan, Mister Dave Yamaya!
In this instalment of the Liquid Eye Tutorial Series we discuss something that most water photographers and filmers have experienced at least once if they have shot in many different environments. Fog! If your housing fogs up while you are shooting it can be a real bummer and ruin your session as you either wait for it to go away or you swim in to try to fix the problem.
What is it?!
So firstly, what is fog. Fog is the evaporation of water turning into a gas. When it meets a cold surface such as the front element of a water housing port it condensates into small water droplets or fog.
What causes it?!
So what causes it. There are three major factors to consider when getting to the root of the cause of fog. The first is obviously moisture, the second is the size of the environment and lastly, heat.
Inside a water housing there are two of these factors that are out of our control. In a water housing you are obviously dealing with a set size of the environment. One that housing is done up tight the area is fixed and usually, as small as possible to make the housing as easy to swim with and travel with as possible. The last factor, heat, is also something that you can’t limit too much. As cameras are never going to be a 100% efficient machine, there is always going to be some heat given off. The amount of heat will also depend on the camera and how much you keep it off or standby while out in the water on a shoot.
So this leaves us with moisture. How do we limit the amount of moisture in the housing!? The main thing is to keep the air as sry as possible inside, that is keep the moisture of the air low. This is obviously easier or more difficult depending on the location you are situated in. In somewhere like the dry Aticama desert of Chile or North Western Australia the air is very dry. Keeping the moisture level of the air inside the housing is going to be as simple as doing up the housing. In more humid/tropical/moist environments this is going to be more of a challenge. In this tutorial Dave will take you through a bunch of different ways to try to decrease the moisture in the air inside the housing before close up the water housing.
Check the full video on our YouTube channel for more
Check out the full video for a good guide through this and stay tuned for more informative tutorials in the coming weeks.
To all the photographers and filmers – Happy Fog Free Shooting!