This $20 USB Powered Lens Housing Keeps Your Lenses From Fogging in the Cold: Digital Photography Review

As winter approaches in the Northern Hemisphere, it’s only a matter of time before you pick up your camera, head outside to shoot, and finally realize that your lens is rotting with changing temperatures. Normally, you wouldn’t be so lucky, but a clever producer from Hakuba Photo hopes to make blurry lens elements a thing of the past. It’s called a Haida anti-fog strap, and it’s essentially a small USB-powered heater that you can wrap around the lens to keep the optics nice and snug.

The heating strap uses a hook-and-loop system to wrap around lenses that have a maximum diameter of 11 cm (4.3 in). The strap is 5cm (2″) wide so it can be tricky to use with smaller lenses if you plan on manually adjusting focus, but when using with longer lenses it should be simple enough to slide back and forth along the barrel to get it in the right place Totally in control of what you want on the lens.

Operating the heating belt is as simple as plugging the included USB-A cable into the battery pack of your choice (battery pack not included). Once plugged in, you can choose between high (55-65°C), medium (45-55°C), and low (35-45°C) settings depending on how cold it is outside (assuming lens size). Hakuba doesn’t specify how long the heating belt will stay warm, for example, with a 10,000 mAh battery pack, nor does it say what the power draw is for the three settings, so until the first units start charging, it’s a guesswork game of what you can expect In terms of performance.

The Haida Anti-Fog Belt is available for purchase on Amazon and through the Haida Online Store for $20.

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