Hi M4/3, Currently, all my M4/3 lenses are protected with UV filters and I'm happy about it since I am not worried of my front glass getting some dust/dirt and smudges. After shoots, i just clean the filter instead of the front glass before i kept it on my dry cab. I'm getting some flares sometimes (very rare) but I'm OK. Now, suddenly I met a guy not a friend who is also a M4/3 user and ask me why do i need to put filters on a lens such as that as he point to my Panasonic 14mm 2.5. I replied him because i want to protect it. And he added, you will only get a flare on that and its really not necessary to use filters on a M4/3 lense. After that I was speachless. I am new to M4/3 system and Im not really sure of what he sad. For Panasonic 14mm 2.5 users or shall I say M4/3 users in general, I just want to know your thoughts on this. Do you really need a UV filter to protect your front glass or you can live without it and just clean it after use.