purchased this product and, as always, the delivery was super fast; I had it at home the next day and in less than 24 hours. The first thing that caught my attention was the product's excellent presentation. It comes in a rigid case with a padded interior, so both the filter and the filter holder are well protected. The construction of the filter holder and the adapter rings (it includes one for a wide range of lens diameters, which is appreciated) gives a feeling of good quality and durability. The filter is held securely in place using the plastic slots, ensuring it stays securely in place without the risk of falling out. The filter is made of optical glass and feels very good. It comes with an elegant leather case and an instruction manual and doesn't have a sealing gasket to prevent light from entering between the glass and the holder and prevent reflections in the photo. However, the holder has a velvet-like felt that serves this purpose, so there's no problem. The photo shown is a camera test without any processing adjustments. It shows that the filter does not vignetting or cast color casts in the image. It also does not detract from quality or sharpness, indicating that the material it is made of is good. The ten stops of light are ideal for long-exposure photography in broad daylight. Considering everything described, it's a good product with a good price-performance ratio, both due to the filter's optical characteristics and the large number of accessories included.