Awesome idea to use optical filters on Panasonic Lumix G 7-14mm F4.0 ASPH

I am a user of MFT system. There are three options of ultra wide angle zoom lens in the market, M.ZUIKO DIGITAL 7-14mm F2.8 PRO, M.ZUIKO DIGITAL 8-18mm, and Panasonic Lumix G 7-14mm F4.0 ASPH. I like Pana's one because of its size and portability.

These lenses commonly have an issue that it is impossible to use optical filters. But today I found a great solution.

Watch this

Further information is also available on
http://www.gaipromotion.co.jp/news/gainews140724.html .

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