I've been a fan of the K&F Concept for some time now. I have your tripods and filters, etc. You guys are always my good quality camera equipment and this is no exception. This backpack has plenty of room for my Sony a7 IV with 20mm, 85mm and Tamron 28 at 75mm. All these gears along with my DJI, ronin RS3 and some other accessories. At the same time, I can also throw my laptop in my bag. Needless to say, it's pretty big and will store everything you have.

Been a big K&F Concept fan, ever since getting my first tripod by them, years ago. And they seem to be stepping it up a notch, over time. For one, their packaging is beautiful, on their filters and accessories, along with the little protective carry bags for them. It's like opening a box of fine jewelry, and enhances the Buyer's Experience. I like to call it, "Power In The Packaging". Very few manufacturers seem to understand that concept, and K&F gets it. Worse still, are those who give you fancy packaging, to dress up a crappy product. But you won't find that here. The quality matches. And, it's magic.
Still trying to figure out how the heck it does that, the adjustment mechanics, how it fades from clear to black. And, the way it knocks off the bright white reflections and smooths everything over, is amazing. Been in the process of rearranging my studio, and putting it all together, so I haven't produced any content with it yet, but I've tested it on some of my cameras and adapters/lens gadgets, and looked at the monitor, sat there mesmerized, adjusting it back and forth, just looking at it, and I'm in love. Can't wait to get it all set up, and put this and my other K&F filters and contraptions to work!

In general, I've become a fan of K&F's filters. They are, and this kit is no exception, quality, well-priced filters.

I'm a big fan of the magnetic filter kits - this is actually my second one from K&F Concept. The magnets are strong enough to provide secure hold, but are still easy to change without fumbling or fear of dropping. p

These diffusion filters create nice pretty effects in my test shots. I love how they look with warm light, but they create some really fun and cool effects with colorful studio-type lighting as well. I really am happy with this set, and I would recommend it.

I've become a fan of K&F Concept filters. The glass is flawless and the build quality is top notch on this filter. I attached before and after shots using the filter. As you can see this is a strong ND, great for specialty shots. It also comes with a really nice case, and the box converts to a picture frame.

own around a dozen different filters developed by K&F and am a big fan of the UV filters in particular. If you know, you know. I only recently found out they offer FX filters so I was very excited to try this out. Friends: This filter works. Period. Not only does this add a nice halo effect to the faces of your subjects, it also ensures that textures are softened evenly throughout the image. Why is this a big deal? Because with the start of graduate portrait season, this filter makes it easier to touch up acne and scars. Instead of endlessly tweaking the masking and corrections and getting blotchy results, this filter cuts the work in half while keeping your edits consistent with the rest of the unedited image. This simple filter is a game changer!

So I am a big fan of most K&F Filters and this filter is no exception. It worked great on my recent trip to San Deigo for vacation. The only reason I would not give this a 5-Stars is found when the filter is attached to my lens the lens cap keeps falling off.

Since I started testing K&F filters, I have become a big fan of the company. The quality of the filters and construction are excellent. The glass was of exceptional optical clarity and the brass rings are precision machined. I have never had any problems with cross threading or pulling off. The filters go on very smoothly and come off just as smoothly.

They are all filters that have just enough friction to stay where you put them, but they turn buttery smooth on the camera so you don't have to worry about moving your camera around on the tripod. They are just a real joy to use. This Euler filter per check mark has corresponding markings on the edge so you know which stop you're at, and it has a little tab that makes it easy to rotate the filter. It is very unobtrusive and should not interfere with your image, i.e. no vignetting.

In the old days, one problem with variable neutral density filters was that you would see this artifact of the two polarized plates crossing and these optical "X" artifacts in your image. I believe the newer ones used spiral circular polarization so you get an image without artifacts.

This filter does exactly what it is supposed to do, darken your image to allow longer exposures, or just block out extreme light and glare on a very bright day.

One thing that strikes me about this filter is that its metering is extremely accurate. If you say it for four stops and then take it off and lower your camera by stops, the lighting will appear identical, although there will be a little more glare without the filter because the polarization also reduces the glare.

Another optically perfect excellent filter from K&F.