Yep, despite knowing better, I decided to cut the corner on a UV filter for my E-P3 kit zoom. It was only $10 - a third the price of a good brand. And it wasn't until summer that the folly of the choice became obvious. I started noticing odd flare and even reflections appearing in my photos ( at least they weren't funny white circles ). So I did a quick test this afternoon and it was plain as the reflection in a mirror! With cheapo filter on... Filter off Perhaps good for special effects? So I will have to go out and get a proper multi-coated filter like I should have done in the first place - and get a lens hood as well just to be extra safe!