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.
23/05/2025
K&F continues to amaze and produce excellent photography accessories and gear. This variable ND filter provides crisp and clear images. The filter itself is perfect. The only thing I would change would be to add a small foam pad inside the provided plastic case as has been in other K&F filters I own, but that is easy enough to cut out and insert myself.
18/05/2025
Es una marca confiable con resultados muy buenos tengo varios filtros de la marca y no me puedo quejar
15/05/2025
I've acquired several K&F Concept products over the last couple of years and they've all performed well for me at the price. This filter is no exception. Granted I've not used polarizers or ND much so I'm a novice at knowing what the difference between a good and great example is. I can say that I see no defects in the output. The ND reduces light uniformly and the polarizer cuts glare as I expect. I don't see any variances in the output picture.
If this item has the feature set you need and you like the price, I believe this K&F Concept combo filter will serve well. Best luck.
~Cheers!
If this item has the feature set you need and you like the price, I believe this K&F Concept combo filter will serve well. Best luck.
~Cheers!
18/04/2025
This filter is a must have. Quality wise, it is extremely well made. It fits perfectly and securely. Photo wise, this genuinely elevates your art to the next level. Absolutely, completely worth every penny and then some.
15/04/2025
I recently added the K&F Concept 77mm Black Diffusion 1/4 Filter to my Canon EF 24-70mm lens, and it’s been a delightful surprise. This filter softens highlights and reduces contrast, giving my photos a dreamy, cinematic quality. It’s like adding a touch of nostalgia to modern shots. The build quality is solid, with an aviation-grade aluminum frame that’s slim yet sturdy, and the threads screw on smoothly without any binding. It feels just as premium as other K&F filters I’ve used. If I had to nitpick, it’s a tad heavier than expected, but that’s a small trade-off for the convenience it provides. Overall, it’s a fantastic addition to my photography gear. 
13/04/2025
The filter work on my Sigma lens with 77mm filter thread.
CLP and ND filters works very well with the lens. No image distortion and I didn't noticed any color shift.
More contrast on photo.
VND filter is very convenient.
Light and easy to use.
CLP and ND filters works very well with the lens. No image distortion and I didn't noticed any color shift.
More contrast on photo.
VND filter is very convenient.
Light and easy to use.
11/04/2025
This is such a clever item! I have been loving my filters from this company and this is another awesome addition to the lineup!
I haven't been able to extensively test this item since it's ideally meant for sunny days, which are sorely lacking in Ohio right now. However, playing around in my backyard on the few moments of sun we've been getting and I've really been loving the way this sucker works.
It does take a bit of finesse to sort out how to make it sing but it's pretty awesome once you narrow it in.
This will be magical to take on vacation!!
I haven't been able to extensively test this item since it's ideally meant for sunny days, which are sorely lacking in Ohio right now. However, playing around in my backyard on the few moments of sun we've been getting and I've really been loving the way this sucker works.
It does take a bit of finesse to sort out how to make it sing but it's pretty awesome once you narrow it in.
This will be magical to take on vacation!!
27/03/2025
I figured having 3 filters in 1 would lead to none of the effects being particularly good, but in use, it actually works really well. I like that the ND filter is adjustable which makes it more versatile, the polarizer works effecively without introducing color shift and the black mist filter gives a pleasingly soft image. Build quality is good, I don't have any complaints with it; it threads on smoothly and the ND rotates easily. It worked a lot better than I was expecting it to and at least to me, seems equal to stand alone filters of each type. I think it's a pretty solid value and a good all-in-one filter overall.
21/03/2025