Sony HDR AS20 with and without Speedo Anti-Fog

Stopping the fog on a Sony HDR-AS20 I’ve got a Sony HDR AS20, which is a cheap action cam that’s actually pretty good. The only problem is that it runs pretty hot in its waterproof case which causes the case to fog up on the inside which sort of ruins the video. The effect is remarkable with Speedo anti-fog (which uses Exxene A091) The case still fogs up where you don’t apply it but so long as you get the bulbous lens part, everyt