As you can see from the page, this graduated neutral density filter is really great for sunsets. The sky is relatively bright, the foreground somewhat dark. Without a filter, the meter measures the light of the sun and the dark areas are washed out. With a solid neutral density filter, the foreground is too dark. A graduated neutral density filter blocks some of the sunlight but allows the foreground to appear normal. This graduated lens makes a huge difference. It dramatically improves pictures of sunlight. It is also good to block out glare, though I would use a polarizer for that. One problem with photography is that most photographers fall into one of two categories: they are either pros or amateurs. The pros want the best equipment and their livelihood depends on their having it. The amateurs want their cameras to do everything for them. There are excellent filters for the former, and the latter mostly don't know what a filter is. That leaves occasional photographers like me often out of luck. I don't want to pay lots of money for something that I will rarely use. K+F Concept is a good solution. It's good quality at a relatively reasonable price--or at least a price serious hobbyists would consider paying. I love shooting in sunset conditions. So, I am very happy with this filter.