I like this creative filter. If you want to take more dreamy photos, this is the lens filter for you. It is glass with a metal/aluminum body that threads on like any other filter. It is easy to thread in transverse threads, it is easy to attach. It has 2 sections that give you extra grip, but it's not knurled, it's just indented to make it easier to grip the sides. For the longest time I always thought the sharper the photo, the better the picture. After shooting with the filter and seeing the more dreamy photos, I realized that not only is sharpness needed in photos, but the incoming light is softened by reflecting the light hitting the flakes in the lens. This filter also softens facial features, making for a more appealing portrait shoot. This filter isn't for anyone, but if you want to take softer pictures and play around with some other options, this is great for you and affordable. This is the 1/4 nebula filter, so this is on the weaker side. K&F has the numbers 1/8, 1/4, 1/2 and 1/1, the larger the decimal the stronger the effect, so this is the perfect value to test and see if you like it, and from there to continue. The lens has been treated. As you can see in the picture it shifts the light green in reflection so it has some good coatings. It's water resistant and scratch resistant, but if you're using this lens filter while the sun is shining directly into the lens, I recommend use a lens hood, otherwise the entire picture will be washed out. I have this problem with all my lens filters, so it's not just something specific to this one. Final Thoughts I like this filter, it's nice, it changed some of the old ways of taking pictures and showed me that there are other ways to take pictures. I trust K&F, I have many other lens filters, they are great price and quality. I like to make as much money as possible and still get good quality. I recommend it to anyone who wants to change their photography. This is a nice extra kit. so it's not just something specific to this one. Final Thoughts I like this filter, it's nice, it changed some of the old ways of taking pictures and showed me that there are other ways to take pictures. I trust K&F, I have many other lens filters, they are great price and quality. I like to make as much money as possible and still get good quality. I recommend it to anyone who wants to change their photography. This is a nice extra kit. so it's not just something specific to this one. Final Thoughts I like this filter, it's nice, it changed some of the old ways of taking pictures and showed me that there are other ways to take pictures. I trust K&F, I have many other lens filters, they are great price and quality. I like to make as much money as possible and still get good quality. I recommend it to anyone who wants to change their photography. This is a nice extra kit. to earn as much money as possible and still get good quality. I recommend it to anyone who wants to change their photography. This is a nice extra kit. to earn as much money as possible and still get good quality. I recommend it to anyone who wants to change their photography. This is a nice extra kit.