A good product of good quality, it does its job, it arrived earlier than expected

Very filter, met expectations

As a K&F user with several of their filters already in my bag, the quality of this 77mm Mist Filter is exactly what I have come to expect: the build quality is top-tier, and the threading is smooth. If you are familiar with K&F, the premium feel is consistent here.

My Current Challenge (and why I still rate it 5 stars)

I am currently struggling to dial in the correct use for this specific filter on my longer telephoto glass (the Sony 70-200mm and 100-400mm).

The effect I am getting is softer/blurrier than the subtle diffusion I was aiming for. I have done some research and attempted different techniques, but I haven't been able to achieve a result I'm happy with yet.

However, I firmly believe this is a photographer issue, not a product issue. Specialty filters like these, particularly when paired with high-resolution telephoto lenses, can have a steep learning curve. The filter itself is constructed perfectly, and I have high confidence in the K&F optics. I'm rating it 5 stars based purely on the excellent physical product quality and value.

I will keep practicing, perhaps starting with a shorter prime lens to better understand the effect, and may update this review later. If you know how to use mist filters, this is a beautiful piece of glass. If you're a beginner like me, be ready to spend some time learning how to properly incorporate it into your workflow.

This is fantastic. I am really enjoying having an adjustable gradient filter, rotating polarization filter, and uv filter all in one lens. The polarization filter isn't supposed to dramatically change the image, it just cuts out glare and reduces shine. So don't expect it to. If you are unfamiliar with these types of filters, do some research and learn how to use them, they will make your pictures look much better if you ise them right.

If you are ever worried about stacking filters then this the perfect filter for you because this is pretty much 3 in one. Back in my beginner days, I'd stack an adapter ring to an nd filter then put a cpl on top of that and that would create some terrible vignetting. But now that technology is better than it was before, we've got Mist Filter + CPL + VNDs in one now. Wild. For $60 this thing is not that bad. I've seen some other filter go for double the price and that's just a VND by itself or maybe even just a mist filter. So if you're starting out and you want to get better video quality or maybe even photo quality, then this is a good filter to start with. The quality still looks good and while it may not be the best for me, it's still a great filter for the money.

Perfect

Great quality for the price! Looks great and has a great feel when adjusting the ND with the lever. I use it with my iPhone 16 pro using an adapter and I have loved the increase in quality in my videos using it.

Excellent 3 in 1 filter from K&F. I have several K&F filters and I have liked them all. This one is the first multi-purpose filter that I have owned. I love that it has the mist filter built in, because most cameras and lenses are too sharp for video. Because the VND and Mist are together, I dont have to stack filters. This means less to carry and manage when shooting. As an added inclusion, I love the little microfiber wipes they include in the individual wrapped packages. It's just a nice little extra to include.

First time using this type of filter. Easy to use and functional. Doesn't degrade the image quality as far as I could see. The build seem pretty good.

It's a reliable brand with very good results, I have several brand filters and I can't complain.