It takes a little getting used to, but the value of a high quality mount, ND filter and a full circular polarizer with several adapter rings makes it a bargain. I can even use it on my 14-30 NIKon Z Len 14mm 14-30 with no vignetting once properly attached. An awesome kit. The ND is excellent and neutral. Recommended.

Great product and does what it's supposed to. When shooting with an A7rii and a Tamron 28-75mm G2 there seems to be a bit of vignetting (possibly due to my settings, it may also be an aberration other than vignetting). The variable ND is definitely nice to have and the range is good for most applications. I found it particularly useful in a snowy environment where I wanted to keep the ISO low.

A few criticisms I have that may be unsolvable because 9f is the nature of the article: 1) the lens cap just barely hangs on this filter, possibly a Tamron lens issue, 2) a lens hood not working effectively, the V-ND's bore makes it so that you would THEN put the filter on the cover.

For a long time I was looking for an ultra wide-angle fixed focal length for landscape and astrophotography. After a long research I bought this lens in the MM. Unfortunately, the first attempt was not surprising because the AF motor was probably defective. OK, can happen! It was quickly replaced with no problems. The second try was a lot better. Above all, the sharpness and the autofocus are great. I tested the sharpness with the Tamron 15-30 and was very impressed. Of course, the Tamron is better in terms of resolution, but the K&F Concept does not take too much resolution compared to the Tamron. Purely visual impression with the help of Photoshop. The vignette is clearly visible at f2.8. Depending on the subject, it can be installed creatively or starts the lens correction in PS. See Ghostbuster pictures. In the case of manual focusing, the lens groups are not manually shifted mechanically; this is done using an electric motor. The close-up limit is approx. 20cm from the sensor level and is therefore very well suited for close-ups. I deliberately do not use the term macro. What are the advantages compared to the Tamron: Clearly the price and the weight. The Tamron scores with the slightly better resolution and the image stabilizer. In terms of processing, the K&F Concept is quite good, but cannot quite shake hands with the Tamron. For everyone who is looking for a light UWW and does not want to lug around more than 1 kg of glass, the K&F Concept is more than well advised. Like any lens, it also has advantages and disadvantages. Have fun looking at my pictures.

If you want to achieve clean ND1000 and want to take long exposures from 30 seconds on a bright sunny day, you should buy a fixed ND filter. That part manages 400 to 500 ND at most. But very good when filming in order to be able to darken quickly and comfortably infinitely without having to change other used quality settings, I bought the ND filter for that and am satisfied with it in this area. Sharpness and colors become useless from a focal length of 200mm (I have a 400mm telephoto lens) Price/performance ok

1. When you run it on your camera, your little flashes will be very strong. 2. I used it for a 30 second exposure at max ND and found that the x was in the frame. maximum darkness. 3. I buy everything else from K&F. The quality of this tool is perfect for me as a professional photographer. It even comes with a circular case that you can slip in your bag when you don't need it. 4. It's also great for the lens when using your DSLR for video work!

1. When you run it on your camera, your little flashes will be very powerful.
2. I used it for a 30 second exposure at max ND and found that the x was in the frame. maximum darkness.
3. I buy everything else from K&F. The quality of this tool is perfect for me as a professional photographer. It even comes with a circular case that you can slip in your bag when you don't need it.
4. It's also great for the lens when using your DSLR for video work!

I have a Sony A7III with some of the Tamron lenses they recently released, 67mm thread on the dUKx. I first used the ND on a daylight midday shoot and was amazed by the results. The best part is that I can choose the number of stops I need to make the zebras disappear with ease. Ease of movement and robust construction. Only negative is that the sun visors don't fit after turning on the ND. Not a deal breaker but be aware.

EDIT: I also took it on a trip to Lake Tahoe and it came in really handy for longer exposures and more sky contrast. Awesome and so easy to use!

I've been a pro photographer for nearly 30 years and have carried bags of ND filters around, wishing for something like this. I was quite surprised by how good this is. It has saved me time and space in my camera bag. No more faffing around with switching filters, now I just turn it. Well made, too. Would definitely recommend it.