The filter is perfect as a protective lens for my Fuji X100. I wanted no UV filter or the like, only a protective function has been sought - and found! I was compared with images that have been made without a filter, not tell the difference in image quality. Those looking for a high-quality protection for its appearance, is happy with this filter. The settlement by Foto Köster was exemplary, the delivery was carried out quickly. Highly Recommended!