small disclaimer: I'm not an ND1000 filter person, I find their water/cloud smoothing effect mostly unnecessary and overdone, overused and overpowered (and many more overs). I said that I need a little more than ND64 every now and then, so I decided to give this KF a try, especially since it came in at 40 EUR with a Black Friday discount. I didn't expect miracles and was prepared for severe color casts. It turned out better than I expected. With this filter there are obvious color casts (photo 1) and to all the claims of "I don't see any cast" all I can say is turn off the AWB please how else can you talk about color casts seriously?! but with the WB adjustment it corrects (photo 2) very close to original colors without this ND1000 (photo 3). Correction scale: 5000K->7200K and 0->+35 magenta in Lightroom. As expected, the sharpness for a wide-angle lens (35 mm) is perfectly fine. I do notice more vignetting (both lenses have the same degree of lens correction), which I'm not sure how to explain, but I personally don't mind, some in landscape shots. Overall I'm pretty happy. It's a cheap alternative to brands already known for heavy blue casts (love your ND graduates, Lee, but your Big Stopper is pure and simple a blue filter, period) and for casual use, you really can't do more expect

We just love this binoculars!

After having had good experiences with the Yonguo 50 mm, I also tried the 35 mm for my "second system" with the Canon M10. It's always a surprise how good these "cheap" lenses are. With an open aperture, the 35 has sufficient sharpness in the middle, which does not diminish at the edges either. The bokeh is nice and even. A little stopped down (F 2.5) it gets even sharper. The small minimum distance of 25 cm is pleasant. Of course you have to make compromises. The autofocus is loud and not as fast as a lens that is 5 to 10 times more expensive. On the other hand, it is quite reliable (not a problem on the M10) even in low light. The processing is good. It's plastic, but feels sturdy. And it's easy. In any case, it can remain as a fast normal focal length on APS-C.

*For the cost* (very important) this lens does everything you need a cheap, fast 35 f/2 to do. The build quality and feel are surprisingly good. The focus ring is satisfyingly tactile — smooth and large enough for my fingers to have an easy, snug grip, unlike my Nikkor D lenses. It's not the widest aperture for a 35, but for less than $100 you get functionality and value. We use this lens to film vlogs indoors with cheap studio lighting and it works well enough for our needs. It's soft all the way to the edges at F2 and difficult to focus with. The AF is quite slow but seems accurate enough. I plan to try this lens for astrophotography but don't have high hopes due to the lack of sharpness at F2, but I'll keep an open mind until I test it. However, when attenuated to f/2.8, clarity and sharpness improve significantly. We shoot our indoor vlogs at f3.2 for that extra depth of field, but would have no problem dropping down to 2.8 if needed, and the improved sharpness is nice at 3.2. I've attached two files — a full-size image of a section of tree, unprocessed at f/2 (1/4000th of a second to eliminate motion blur) and a cropped version of that file to show the poor sharpness right in the center of the frame. The lens is a nice size. Slightly larger than my Nikkor 50mm but smaller than my Rokinon 85mm. It works well with my Nikon D500 and when the focus is where you need it the images look good. It also focuses close enough for close-up macro photography, so that's nice. That sucks compared to other more expensive 35s out there, but these lenses cost hundreds and hundreds of dollars more. So I give it a 4/5. It's a great lens for getting the feel of a 35mm lens, but I wouldn't recommend it at all for professional use. + Good workmanship Inexpensive close-up focus - Slow autofocus, not sharp at f/2

add a clarification on the product after use. I'm very happy with the Nikon 35 1.8DX on this adapter.. which I thought was a bit thick.. I expected some loss of brightness. Since there is nothing in the product details, I tried to ask K&F about it: no answer... :( Well, I did the measurements myself... with the same aperture on a sensor with the same resolution, we go with the adapter from 1 /800 to 1/500.. so 3/4 of an additional f-stop my 1.8 Nikon becomes a 2.2... a 2.8 becomes a 3.5 the product is excellent but good to know this loss of brightness ( would have liked to see it noted). As with the extended rings, the lens attached does not lose any sharpness I was waiting to receive it, at least not expecting the best... Surprise; the product is heavy, well finished (I have already extended All plastic rings) I grab my XM1, I pull out my fixed AFD focal lengths... the 24... that becomes a 36... and the 35/2 a 53mm my first attempts at shooting don't work: he you have to Select "shoot without lens" in the xm1 settings, I continue to shoot, excellent the system of" ; "Rand" on the screen when the MAP is ready, (I tested at 1.8-2 to verify this map, on the computer the map is actually correct). The contrast system is only really apparent at a wide aperture... As with some old cameras, open the aperture card wide and stop before shooting with other cameras in range that also have viewfinders. It might be easier to focus manually: the ring also allows you to do glare, you do that "at your discretion", but it's great to have. The 35 1.8Dx is very good at 1.8 for anything that doesn't need an ultra-fast card (j) I've tried portraits of my dogs... that move... well, manual focus on the XM1 screen remains quick and accurate ), for anyone who has a quality focal length stash that doesn't want to buy new ones that aren't necessarily better in terms of sharpness (no choice on Xmount Mount). I recommend this ring in addition, very affordable I am very happy with this surprise purchase, all my Nikon lenses are reworked with this camera

A thread counter in your pocket for 35 years. printing trade.
I highly recommend this device. I'm really very positively surprised. Great for my purposes. Documentation of print results. All wireless. Easy to connect with mobile phone.
Goodbye thread counters.

Filter used on a sigma 24-35. Very practical in variable to make long poses during the day.

I was looking for a filter of this type not too heavy because this kind of photo is not my primary activity. This K&F Concept ND Filter is perfect and not too expensive!

Great filter . Using this on my Zeiss 16-35 f/4 on a Sony a6500 for film use. The picture and build quality of the filter is good value for money , made with quality glass . My only complaint and this is pretty big deal for me is my lens hood will not fit while using this filter . It’s one or the other for me now , which is a bummer.