I can not understand how the filter may drop by itself somehow. I have to, even if I pick him aware draw properly fixed it ... (goods received on 26.06.2014)
As a UV filter, however, he brings little visible improvement, I later try two sample images to upload.
Unfortunately, you have quite a lot of patience may have to the mission with "China Post" eintrudelt here in Germany. The seller admits 4 - 6 weeks delivery time. As for the first 6 weeks still nothing was here, was again forwarded. This mission met then after a further 4 weeks. (So not only shortly before the holiday order ...!) Mail correspondence goes quickly but only in English.