[72 mm] Bought specifically to use with my GF lenses for the Fuji GFX 50r. Truly does give a more filmic look right to the RAW files. Great for back light and creating natural lens flare. Skin texture is lovely as well.

[Aluminum] If you're looking to try long exposure on a budget, this is a very solid buy.

I bought this for a first attempt at long exposure waterfalls and I am immensely pleased, especially with the price point. I shoot black & white so I can't comment on any possible color aberrations, but all of my shots are clean and sharp. It took getting sprayed by waterfalls in the middle of winter very well, cleans easily and threads smoothly. Best paired with 100 speed film on bright sunny days, it only took me down to 1-2 seconds with 400 speed.

[Aluminum] I am a film photographer and I bought this for my Pentax f/1.4 50mm lens to shoot long exposures of waterfalls. For such a low price I was prepared for problems but all of my images were beautiful and consistent, no difference in picture quality at different exposure times and different lighting conditions. The fact it is waterproof was greatly appreciated since the spray radius off some of the falls was quite impressive. Overall very pleased especially for the price, I would def buy from this brand again.
Good to note: I primarily shoot black and white, and the only color shots I took with this filter were at night, so I can't really speak to how it might affect colors. What I did shoot looked accurate and I don't see any discoloration.

[Glass] I am very pleased with this filter. No more changing. It's all in one

[Aluminum] I checked videos online about tests done with this filter to see which Ultra contrast filter level I was going to buy. I decided to go with UC 2, and now that I have it in my hand and could perform tests on my own, I must say it is pretty strong. the UC 1 is just enough. Another thing you must take into account is that the exposition can not be trusted from the camera. With this filter you have to use a light meter all the time. Because the camera reading is at least 1 1/2 stop under the real exposition. Other than that is a great tool when you are shooting video, and don't want those black without information, and you want to avoid overexposed highlights

[0.21 lb] I purchased a Nikon 500mm f5.6 and this filter to protect it. This filter does not interfere with the lens hood and the lens cap snaps into it fine. I liked the high light transmissiveness for the price.

[Glass] I recently purchased the K&F Concept 1/4 Black Mist Filter from B&H, and it has quickly become one of my favorite photography accessories. This filter adds a touch of enchantment to my shots, softening highlights and infusing them with a subtle misty quality. It strikes the perfect balance at 1/4 strength, preserving critical details while creating a dreamy atmosphere. B&H's seamless shopping experience and prompt delivery made the purchase a breeze. I'm thoroughly impressed with both the product and B&H's exceptional service. The K&F 1/4 Black Mist Filter has unlocked a new dimension of creativity in my photography, and I couldn't be happier with my purchase.

[72 mm] This magnetic series of filters is really great. The magnetism is strong. It will definitely stay put all day. The lens cap is the cherry on top. I have yet to try other cpl filters to compare the actual function of the filter, but so far it works great. It comes in an individual case to store.

[72 mm] Purchased the 95mm version for my OM 150-400 lens. Even using it atop the Olympus protective filter there's no loss in image quality. Also very effective polarization, more so than other more expensive polarizers.

[72 mm] Works great with Leica D-Lux 8