I've been taking photos as a hobby for several decades, first analogue, then of course almost exclusively digital for 15 years, i.e. I've seen and tried out a number of photo accessories over the years. With the filter I bought here, three things were decisive.
1. The quality, I've often spent money unnecessarily on useless photo accessories
2. The price, I don't see a reason to spend more money, which you can't see in the photos afterwards anyway
3. The durability and extension of a plug-in filter system
Attached is a picture with the gray gradient filter
All points speak for this product. The filters are quickly attached, make a stable impression and are supplied in a practical case. The plug-in filter system is more than useful for the hobby photographer. In any case, I wouldn't want to be without it in my photo bag. I can't understand the fact that the filters are difficult to insert, which is often criticized here, on the contrary I even find this important because otherwise the filter could quickly fall through. After more than half a year and several sessions, I can only say about the durability of the filters so far nothing is scratched or even broken
Conclusion: Anyone who takes photographs knows that this hobby can sometimes cost a lot of money, and this is often the case with this hobby; "If you buy cheap, you buy twice". However, I don't have the impression with this product that the more expensive competitors, who also offer plug-in filter systems, do it so much better that the surcharge would be worth it here. That's why I can only recommend this system