Very good!

I start by saying that this filter will remain forever on my Canon 24-70 and that I am satisfied and amazed by the effect it gives to my photographs.
The filter comes in a hard case that already differentiates it from low-end filters: it is comfortable to use and has a non-slip part with different notches for multiple filter sizes. The construction is excellent and can be seen immediately from the layer applied to the surface which is a professional tool.
If you are a photography geek like me, to give an effect similar to diffusion / glow, you have already tried things like petroleum jelly on the lens, stockings pulled on a filter or various films. Here this filter is anything but. It has a sneaky effect and does NOT degrade the image. The edges remain sharp while the colors seem to fade slightly inside the photo, restoring the quality that was had with the use of film: really nice! I bought it for photography in broad daylight, but surely one of its best applications is with lights at night where you can appreciate more this diffusion of color and brightness. Despite being an overused term, this filter lends an organic feel to digital photographic pulp. I would like to point out that it does not have a blatantly and vulgarly widespread effect, but visible without attracting attention. Highly recommended for videos too!

I ordered this for my husband and he loves this filter. It has taken some steps out of his editing process. He likes this filter, because it does so much during photo shoots that he doesn’t have to waste time fixing small imperfections during editing. He says he noticed a big difference in the quality of his photos pre editing. The filter is thin and fits well on his camera. The quality of this filter isn’t bad. It seems to be holding up well and not showing signs of wear and tear. Great product!

When I first found out about this lens filter, I knew I needed it. I've spent so long in editing programs just to get a subpar hazy/soft affect on my photos, but this filter is what I've needed this whole time to streamline my photography workflow. It's the perfect filter for that dreamy film affect!
The top photo is without the filter, the bottom photo was taken just a second later with the filter. It ads a beautiful softness and warmth to the photos!

Overall, I am satisfied with this K&F model, which dims the light sources at night and creates a pleasant atmosphere during the day. I use it with an Xpro-1 which makes a combo with an analog rendering for a digital camera.

Order received on time.
Packaging more than adequate.
As for the equipment more particularly well… it does the job very well. It's really essential gear for those who want to soften their digital photo rendering. Can't wait to test it in portrait photography

I have watched different films noticing the use of diffusers. I really did a lot of comparing black matt filters.
This one is perfect. I get the softening without it being noticeable.
This is really a high quality filter. I am very happy with it.

Though the suggested use for this filter seems to be softening portraits, I have been exclusively using it on my macro lens for flower photography. And, for that purpose, it's great!

Essentially the class looks like it's been dotted subtly with specks of dark paint (imagine what it would look like if you lightly spraypainted a glass surface). The result is a subtle softening of any photos you take.

Note that the softening effect of this filter can be obtained through photo editing software. So, there is an argument for not using a filter like this at all. Without this filter, you could decide whether or not you wish to soften the image later. But if you use the filter, you will have lost potential detail that you might later wish you had.

But if you know that your goal is softening this filter does it optically, rather than your needing to do it digitally. As for me, I'm happy to have it, especially because spring flowers have started blooming!

Great product, you can use it as ND filter as well. Anyway, everything looks much better when I use it while filming, I would love to apply here some youtube videos but damn amazon blocks all the reviews that have links to youtube.

Very subtle through the viewfinder, but there is a noticeable affect on exposure time. For achieving a vintage portrait look, this thing is fantastic, especially when coupled with a manual focus legacy lens - I have mine on a Rikenon 50mm. Sharpness is greatly reduces, but not in a "cheap lens" way, just a subtle and even softening. This brings to mind the famous Pentax "soft focus" portrait lenses of the 70s, but is a far less blurred image. Handy to have in the kit bag, but not really good for much other than portraiture. I have yet to try a K&F product that I am not absolutely impressed by.