bought this product and as always super fast delivery; the next day and in less than 24 hours I had it at home. The first thing that caught my attention was the good presentation of the product. It is presented in a hard case and is padded on the inside so that both the filter and the filter holder are well protected. The build material of the filter holder and adapter rings (includes many lens diameters, which is welcome) gives a feeling of good quality and durability. The filter is correctly clamped with the plastic grooves, and the filter is securely fastened without the risk of falling. The filter is made of optical glass and transmits very good sensations. Comes with a stylish leather case and instruction manual and has no seal to prevent light from slipping between the glass and holder and there is no glare in the photo. However, the holder has a velvet felt that performs this function, so there is no problem. The photo shown is a camera test with no processing adjustments, where you can see that the filter does not vignette or leave any color dominants in the image. It doesn't strip away the quality and sharpness either, so the material it's built on is good. The ten light levels are ideal for long exposures in broad daylight. Considering what is described, it is a good product with good value for money, both for the optical characteristics of the filter and for the large number of accessories that it includes.