K&F Concept is a brand that is slowly but surely rising among photographers in general and in my personal photographic accessories in particular. Good quality/price ratios in general, with serious manufacturing quality and generally well thought-out concepts. These filters are no exception. When you buy the DJI Mini 5 Pro Fly More Bundle, only 3 ND filters (8, 32, 128) are provided. That is good, but unfortunately, they are not necessarily the most useful in reality and above all, the others are missing. Those who are present in this kit proposed by K&F Concept precisely! (16, for example, is still the one I use most often personally). Well housed and protected in their rigid plastic box where each of them is securely held in their small personal foam case, they will perfectly fulfill the task assigned to them in general when filming: to give a much more “kinematic” motion blur while attenuating the entry of light on the sensor. Therefore, depending on the very different lights that the Sun can give, the choice of attenuations is therefore well distributed across these filters. The glass and its anti-reflective treatment are of high quality, so there will be no unsightly artifacts in the images. The mount is made of very good quality plastic, so no worries about snagging or unhooking the filters once in flight. Of course, they are small, you will have to be careful when attaching them to the drone lens. In the end, at less than €35 for the 6 quality filters, the deal seems excellent to me if —of course— you want your drone images to be of the highest quality possible.