didn't notice any color. Changing, it was an amazing price and it stays on whatever stop you leave it on. No X pattern and I didn't see any quality loss.

Note that this review is for the full 1 grade black diffusion filter from K&F Concept K series (Nano-K).

The 67mm circular filter is lightweight, made of aluminum that is precisely machined so that the rim fits perfectly. I was able to twist this onto the front of my Sigma 16mm lens smoothly. This is nice, with low reflection and anti-glaring. There is no detectable vignetting and it gives a softer edged "dreamy" cinema effect to shots.

Packed in a nice plastic, protective case and three microfiber cleaning cloths are included. This is a great addition to any photography toolkit.

like this creative filter. if you want to get more dreamy photos this is the lens filter for you. This is glass with a metal/ aluminum housing it threads on just like any other filter. no issues cross-threading, it goes on easily. and has 2 sections that help give you extra grip but its not knurled its just indents to help out gripping the sides. For the longest time I always thought the sharper the photo the better the image. After shooting with the filter and seeing the more dream like photos, it started to show me that sharpness isn't the only thing that is needed in photos but this will soften up the light coming in, by reflecting the light hitting the flakes that are in the lens. This filter will also soften up facial features for a more appealing portrait shoot. This filter isn't for anyone but if you want to take more softer pictures and play around with some other options this is great for you and affordable. This is the 1/4 mist filter so this is on the weaker side. K&F has the 1/8, 1/4, 1/2, and 1/1 the bigger the decimal the more the effect so this is the perfect amount to test out if you like it and go from there. The lens does have treatments on the lens. as you can see in the image it is shifting the light to green in the reflection so at has some good coatings on it. it is water repellent and scratch resistant but if using this lens filter with the sun shining right into the lens, I do recommend to use a lens hood or the whole Image would be washed out. I have this issue on all my lens filter so it's not something just specific to this one. Final thoughts I like this filter it's nice, it changed up some of the old ways of shooting photos and showed me there are other ways to take photo. I trust K&F, I have lots of there other lens filters they have a great price and amazing quality. I like to same as much money as I can and still get great quality. I do recommend this to anyone who's wanting to change up their photography. This is a nice extra kit to have.

WHAT’S INCLUDED:
-K&F Black Diffusion Filter
-3 Cleaning Clothes

PRODUCT:
This Lens is a ½ Black Diffusion Filter. So your mist effect will be a lot greater than say your ⅛ filter for example.

The quality seems nice and you get 3 individually packaged cleaning cloths.

The frame itself is pretty thin as this is part of their Nano K Series, so the overall footprint is slim.

Unfortunately, I ordered the wrong size. I needed to order 58 and Instead, I ordered 55. Which is my fault. However, I still tried to test this filter by rigging it up on ONE of my cameras. I won't share those test photos since it's not completely accurate as I’m not using any kind of adapter to fit the lens properly, however, I was able to get enough of the desired mist effect that this kind of filter produces and it looks great. This kind of filter works exceptionally well for outdoor portraits, although some people are now using them on themselves when they are making Vlogs, and other YT videos, to soften up their skin and looks..etc

Just don’t be like me and make sure you get the correct size you need for your camera, and this will probably be a good option for you.

Works as expected. Cleaning cloth is a nice bonus. Probably a niche item for some, I'd say it depends on taste to whether it works for your needs. Sometimes it's neat, other times I don't care for it but it's another tool in your bag to experiment with.

For the price, this thing is incredible.Quality is totally fine for the price. The effect is most extreme when the dynamic range is greater, such as bright lights or backlit scenes. It's subtle enough to leave it on my lens and not even think about it. Image quality is great.

The K&F Concept 77mm Black Diffusion filter is well constructed in a metal frame with knurled edges and screws easily on my Sony FE 24-105 lens. I have been using K&F black diffusion when I shoot daytime events. The diffusion softens the harsh sunlight slightly and serves as a contrast to photos shot with phones.

The 1/8 and 1/4 filters are too subtle to see. The 1/2 filter adds a nice glow. The full diffusion is pretty intense and should be used in special circumstances, like trying to mimic old Hollywood portraits shot through nylon stockings. The filter looks great in black and white photos.

I find when using the filter be careful with extreme rear source lights or harsh side-angled light - because the glow can be unnatural.

In terms of filters, it feels like K&F is making some good ones. This is a nice filter, and well made. The effect on this one is fairly strong, but if it's the effect you're looking for, then this is a good filter to get it. The diffusion is nice and soft, and the materials all feel good. It threads nicely on a lens, and feels like it should hold up well in the future.

1/8 is the perfect diffusion. takes the edge off without getting all 'ethereal' or unrealistic looking. seems to help with Sony on making the digital feel less pronounced. only weird artifacting you get is at the super wide end, closer to 16mm (full frame) so i don't use it on my 16-35.

For me, this is an absolute winner in terms of value for money. The filter does its job excellently, and the videos turn out great.

I have the filter on the Sony ZV-E1 with the Sony 24-105mm lens, and both the lens cap and the lens hood attach without any problems.

Filter for photos: 8/10
Filter for videos: 11/10