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B+W Filters Are Fighting Lens Mildew With UV Light

B+W Filters have created a device that uses ultraviolet light to kill lens mold and mildew.

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B + W UV cleaning device


To stop mold and mildew build-up on the internal elements of your lens, German manufacturers B + W Filters have designed a device which uses ultraviolet light to remove it.

According to DC Fever, the UV light damages the mold and mildew's structure and as a result, it can't divide and grow. The device has a built-in battery and connects to your lens or camera body. A button is pressed, which lights up blue, to start the cleaning process which B + W Filters recommends is completed every 30-50 days. If you've not connected the device tight enough, which could lead to light leakage, a blue light on the device will flash, an alarm will sound and the process will be stopped.

DC Fever says the device retails for 1,000 which if this is Chinese Yuan, converts to around £105. Take a look at the DC Fever site for more details (you can find the translated page here).


B + W UV cleaning device

B + W UV cleaning device

B + W UV cleaning device

B + W UV cleaning device

B + W UV cleaning device

B + W UV cleaning device

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alan53 13 United Kingdom
10 Jun 2015 10:09AM
Does this mean that UV and protect filters actually make matters worse and harm lenses?
10 Jun 2015 2:16PM
Hang on. Normal glass blocks UV, so how can this affect mould on internal elements?? Except in a fluorite lens.

- Stephen.

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