Hey guys, Today i went to my local store to get some GAS pills (aka: lenses) and the manager who already knows me, started chatting and asked me which filters do i use with my lenses, so i told him about B+W UV filters plus Marumi CPL, Cokin P ND, etc. And he says, well have you seen this? and pulls a fancy silver rounded box with a filter inside. (looked fancy already= expensive to my eyes) and pulls out the new Cokin Pure Harmonie UV filter. i was like WOW! . this thing is thin!. thin as a film, thin!. i didnt know even how to grab it from its hand. To my surprise this were not expensive (compared to my B+W UV ones) and also are multicoated anti everything pure glass!. the most impressive thing is that apart from being the thinnest filter ive seen in my whole life (not exagerating) it also has a thread to take caps or other filters. so i pulled the trigger for my new O17 that i was buying! I thought i would mention this as i totally recommend this filters. simply impressive! Cokin - PURE Harmonie - UV MC - The contact lens of your lens. ps: i have nothing to do with this brand, just a "WOWed" customer.