I was reading reviews for other ND filters and found this one for the price to work great for what i will be doing. The build quality is really nice, it has some weight to it so it feels strong, the glass is really clean and it works perfect, I got this for my 35mm 1.8 and it allows me to take pictures and shoot video in full daylight at a wide aperture of 1.8 with an even balance of blue in the sky to the greens in the grass. I was really impressed with the quality of this filter. I will be getting another one for my 50mm 1.8. I'm using it for mid day long exposures of waterfalls and cloud landscapes. Also this helps give a cinematic look for shooting video which looks really nice! I didn't see any noticeable loss of detail in images or video which is what i was worried about. I did NOT notice any kind of X or shadowing from this filter. It is probably from using a wide angle lens. I highly recommend this ND filter!
30/08/2023
UPDATE: I was approached by a company representative and offered a replacement filter. I received it today and did a quick test. This filter seems waaaay better. It doesn't have any shadows in the corners or any black spots when shooting towards a light source. I haven't tried it out in the field yet, but it looks like it'll be alright. Either way, impressive customer service.
ORIGINAL: After reading all the reviews I decided to purchase this filter because my budget was tight. I used it on 24-105 f/4 L lens to take some photos at sunrise and sunset. It's absolutely terrible. There is a black shadow on the right side of the filter that gets stronger with each step. I wish I could return the filter but I've already threw away the packaging:( Will have to throw this filter away as it's completely unusable...
ORIGINAL: After reading all the reviews I decided to purchase this filter because my budget was tight. I used it on 24-105 f/4 L lens to take some photos at sunrise and sunset. It's absolutely terrible. There is a black shadow on the right side of the filter that gets stronger with each step. I wish I could return the filter but I've already threw away the packaging:( Will have to throw this filter away as it's completely unusable...
22/08/2023
I have used numerous filters, from Cokin, to buying several for different sized lenses. And, I do a serious amount of light and strobe painting (do a you tube search, if you're curious). So, when I dropped my super expensive ND filter, I was crushed! Right up until I found this K&F Concept ND, which offers a "Variable Neutral Density". Imagine looking at purchasing an ND Filter for the Typical four hundred bucks (and, that is only for a single fixed ND number)? Oooor, grabbing this well constructed, high quality ND filter that you can adjust to your liking ON THE FLY! Still thinking...
Buy it Bonehead!
Buy it Bonehead!
10/08/2023
This filter is the bomb! I use it in broad daylight to slow down shutter for that cinematic look. My videos have been coming out nice as of lately. This is actually my second time purchasing this same filter for a different camera. Highly recommended for those who want to master their camera & shoot only in manual...
03/08/2023
I had never heard of K&F before, so I was a little worried, but there were no problems with the image quality.
Before I bought it, I had read reviews about other manufacturers' variable NDs that showed strange patterns when the ND value was increased, but there were no problems with the Olympus 45mmF1.8. (Is it because it's telephoto?)
As expected, the highest ND value changes the color, but since it's just the color, I wonder if I can correct it as much as I want later.
At this price, I think it's a good product.
It will be shipped from Hong Kong, so it will take some time to arrive.
I think it would be better to order early.
I like the thin one, but I wonder if it's thin.
Then the filter diameter will change. 37mm → 40mm (probably)
Considering the price, I think it's totally worth it.
Before I bought it, I had read reviews about other manufacturers' variable NDs that showed strange patterns when the ND value was increased, but there were no problems with the Olympus 45mmF1.8. (Is it because it's telephoto?)
As expected, the highest ND value changes the color, but since it's just the color, I wonder if I can correct it as much as I want later.
At this price, I think it's a good product.
It will be shipped from Hong Kong, so it will take some time to arrive.
I think it would be better to order early.
I like the thin one, but I wonder if it's thin.
Then the filter diameter will change. 37mm → 40mm (probably)
Considering the price, I think it's totally worth it.
01/10/2022
Goodness, I cannot believe the price compared to the quality. It has taken my videos to the next leave, STRONG BUY recommendation.
28/09/2022
Great quality ND filter compared to price. You should get one of this K&F Concept ND filters if you are a video maker.
22/09/2022
I’ve been using it for some time now but I realised when it’s time to take that perfect photo I tend to remove it from the lens because there’s a very slight change in colour with the K&F Concept filter on.
03/09/2022
For the price it is great, perfect for beginners or someone on a budget. If you are wondering what size to get look the your camera lens and there should be a 2 digit number. That’s the size you need. Works great on my a6400
12/08/2022
The K&F Concept ND Filter does not have a stop, it will continue to spin all the way around. Though it does spin freely, taking the camer in and out of a bag/case may change the filter intensity. Otherwise it allows for much lower f stop. I use this while filming outdoor shots.
29/07/2022