The product is excellently packaged, externally well cared for and inside the filter is housed in a practical carrying case. In the package we find: - Filter - Filter cap - Wrist strap - Vacuum microfiber cloth. I will not go into detail about the technical specifications as they are already mentioned in detail in the product description, but I will tell you about my experience of use and impressions. As soon as you open the package we immediately notice that the product is of excellent workmanship, both in terms of the metal outside the filter and the filter itself, which has an excellent multi-coating that is clearly visible to the naked eye even before trying to take the shot. The cap is also of excellent workmanship, very solid and equipped with the presence of an eyelet to be able to attach a strap to it, which comes together with a vacuum-packed microfiber cloth. I tested the filter with a Samyang autofocus 35mm f2.8 and it behaved really well. During the day I didn't have any special lenses, in night situations you have lenses to do that but only under certain lighting conditions. The loss of detail is very slight and not noticeable on APS-C sensors, slightly noticeable on full frame sensors, especially if we crash in post-processing. In summary, it is an excellent product that is also full of accessories. My final rating is 5 stars