I have quite a collection now of K & F concept accessories & I think they have found the right balance of quality & value for all their products. Everything I’ve gotten is really well made. They even included a few microfibre cloths.

The set of 1/4 & 1/8 gives me options & was better priced than most companies single filters. My intended use is to soften harsh light sources at night (but if you are looking to buy one, you already know their uses I suppose)

The only minor wish is that they sized the carry case to fit each size filter (I know I’m asking a bit much as it would be a greater expense to make for each size) as carrying a case twice the size of the filter is wasting space in my bag as I don’t leave black mist filter permanently attached to the lens. Oh & doesn’t have a thumb nick to help open the case, so it’s a bit fiddly. But to be honest many photographers probably have their own filter cases. I’m just cheap & expect the world to bend to my wishes mwahahahaha..

I recommend you explore K&F’s other products. I used to buy their products from other Chinese distributors, but Amazon Australia is now price competitive & has faster delivery, like a few days vs what was sometimes a couple of months with the other distributors

Let's start from the assumption that I purchased these filters and they were not sent to me to review them for free like other people, so I will give an unconditional and objective opinion.
Having said that, I chose not to return them and keep them with me because they are truly unbeatable in quality/price.
Specifically, I have absolutely not found any cons worthy of note but only pros, such as:
- Truly exceptional quality/price, with the cost of a black mist of any other brand you take home two with intensity 1/8 and 1/4 allowing you to modulate the effect based on different situations and conditions.
- Not excessive effect: for me it is absolutely a pro, because the effect that is given especially with the 1/8 is very limited but present, allowing you not to ""wash out"" the contrasts while always maintaining excellent blacks with a slightly more ""dreamy"" effect of the lights.
- threading on BOTH filters FORWARD and BEHIND! This is a fantastic thing because you can not only mount the 1/8 and 1/4 filters directly on top of each other to maximize the effect, but you can also mount an ND filter at the same time and this is the TOP.
I have attached 4 photos taken with Sony ZVE10, Sigma 16mm, F1.4, ISO125 in a completely dark room. The first photo is without filters, then 1/8, 1/4, 1/8+1/4.
I hope I was helpful.

Im new to photography and wanted to try out this filter

First pic is no filters, second photo is both filters stacked. I think Ill stick to the 1/4 one as its noticeable, 1/8 more subtle

I've enjoyed playing around with these filters. They give a nice soft look that definitely has it's place

I already own a Tiffen Black Pro Mist 1/4 filter and bought the K&F set of two filters for a smaller lens as a supplement.
The effect is significantly less pronounced than with the Tiffen filter, but I don't see that as a disadvantage. The light is slightly broken up and shines subtly into the surroundings, but doesn't create such a strong halo effect. I personally like the result a lot and will use the filters frequently.
I think the price is very fair for a set of two filters in different strengths.
Customer image

Nice addition to the kit for that dreamy, softer look.
It's fun to commit to the look while shooting even if these days the effect can be almost replicated with digital plugins. For this price I highly recommend :)

I also have a black mist from the more expensive and more popular brand but these do the trick well. I will consider K&F for future purchases.

Beautifully softens tones for portraits and rendered concert strobes and other powerful light sources well in event photography. A personal must have

Both of these filters work wonderfully, on par with the much higher priced versions.

These filters are built great, I have had no problems with them. The 1/4 does seem a bit strong, stronger than the Tiffen 1/4 BPM. The 1/8 is perfect for everyday use, but the 1/4 can seem too much at times. The Tiffen 1/4 is a good step in between the K&F filters.