I am a passionate landscape photographer as a hobby and have now switched from the screw filters to this rectangular filter system from K&F. The screw filters were all fine, but you don't have the option of attaching a graduated filter to the ND filter in order to achieve even nicer effects. It is mounted on the lens using so-called adapter rings, which are included in the most common sizes for lenses. After attaching the adapter ring to the lens, the filter holder is attached. This is secured by a small lever (spring-loaded) and later released again with this. Now you can slide the filter plates into the filter holder. This lifts a bit severely but it should also hold and must not wobble. It is also important to observe that the filter used is close to the lens so that no more light can penetrate between the filter and the lens, which could possibly ruin the recordings. In terms of quality, the system makes a good impression considering the price. The only thing I noticed negatively is that the filter holder has some play after it is placed on the adapter ring and why there is no adapter ring for a 55mm filter diameter in the set, I also ask. 55mm is a common diameter for lenses. I can highly recommend the K&F system for amateur photographers. The professionals will probably use filter holder systems from other manufacturers, but they also cost a lot more.

Absolutely delighted! K&F did a lot of things right here! When I unpacked the adapter rings and the holder, I was already very satisfied. Metal case from 48 to 82 rings. But then the glass, it is packed in a leather case, very high quality! This is otherwise only known from very large brands and companies, which can also be paid well for expensive money, but the price is right here! Only the German translation in the instructions leaves something to be desired! Doesn't flow into my rating! I can overlook that! Dear K&F team, please keep it up! An absolutely overwhelmed customer that you won with me!

I like that it filters out the light pollution and still provides natural colors of the objects in the night sky.

Great light pollution filter. this filter cuts the light pollution out which enables me to get the long exposures I need to image deep sky objects.

These filter help reduce urban streetlight pollution by filtering out the yellow light. Must have for Astrophotography.

This does an amazing job of cutting through artificial yellow light. I've used it both in rural areas with minimal light pollution (Big Bear Lake, as in the attached picture), and in suburban Los Angeles area that has tons of light pollution. I love night photography, and will be using this filter frequently.

The build quality seems good, the glass is flat and coating is even. It comes with a nice plastic case to store it in. No complaints with this.

The attached picture is Big Bear Lake. Two pictures taken with the same settings. The one with the filter had the exposure adjusted to +1 in post processing to match the exposure without the filter. The left side is without the filter, the right is with filter.

Besides night shots, I’ve found it very useful for creative day shots. I definitely recommend this filter. You get what you pay for; the image quality is very good with this filter.

Boom! cuts light pollution like a sushi knife. Love it since I live in a very night is lit up like a day. Do not hesitate, I use it astro photography at a leading University.

Added this to my collection of K&F CONCEPT filters, this one specifically for night photography. Does a great job with minimizing light pollution in city scapes, Highly recommended.

El filtro ayuda a que la imagen sea más protagónica y no haya tantos tonos amarillos. De gran utilidad en fotografías nocturnas y de atardecer. Es de fácil colocación acorde al tamaño del lente y el estuche de protección es de muy buen diseño.