Have ordered the Haida gray filter ND64. The delivery arrived already two days later, and the filter is in tip top shape. The filter thread is firm and can also easily attach to the lens. It is delivered in a handy plastic box. So nothing can go wrong in the camera bag. In addition, a lens cap was still in the process of holding well despite the slim version. The very subtle blue tint of the photos has been described, but is really not a problem. Only the shutter speeds were too short to me. So I came in dull weather and aperture 22 in only 3-4 seconds exposure time. But I did not want to give up the filter, you never know ... Hab then taken personal contact with the dealer and another Haida ND ordered me available at 1000. The delivery was even there already the next day. Even the filter is super processed as already described above, and allows me finally the desired slow shutter speeds. Conclusion: Super quality at an unbeatable price. These nice contact to the dealer and used fast delivery times.