If you've ever tried your hand at astrophotography on a chilly winter's night, you'll know that it's not just a case of keeping yourself warm, but your camera kit too. The front element of lenses and filters attached to them have a nasty habit of creating condensation when they are cold, attracting moisture from the air and fogging up shots in the process.
The H&Y Swift Magnetic 100mm Heating Holder is a square filter system that prevents condensation or freezing of lens filters during outdoor photography. The filter holder is equipped with a heating mechanism that prevents condensation and is combined with H&Y's magnetic system to allow for quick attachment of filters.
