I had been meaning to buy a variable ND filter for my 24-70f2.8l for a while. When I heard about K&F filters; having tried a 3xnd filter kit pack that I was impressed with; especially at the price. I looked at K&F's other products and found this more than reasonable price ND filter and had to give it a go.The filter is shipped from China; so its not something to order if you are in a rush - but when it did arrive I was blown away by the quality of the presentation. The filter was packaged inside a well designed; expensive looking, cardboard outer package and then a hard plastic inner with a foam sheet to allow it some protection.On opening the pack one disadvantage to this filter immediately manifested itself; the front element isn't 77mm so your lens cap won't go back on the lens with the filter mounted. The filter mounted smoothly onto my lens. The variable darkness is achieved by rotating the front element; as you would a circular polariser. The K&F filter spun smoothly but with enough resistance to keep the darkness you set so knocking it won't change the setting. One disadvantage to the design is the filter doesn't have coded ND values so there is a bit of guesswork to get the right exposure for stills.I tried the obvious and took an image of a plain white wall at various ND settings; and there was some minor differences in the brightness of the photo - it was a bit lighter at the edges of the frames. At its darkest on long exposures; the 6d went red shift but this is correctable in Lightroom (and made much easier if you use a colour checker passport.) If you zoomed in on the plane white background you could see some variations in darkness; and ultimately pixel peeping at maximum darkness a mesh. That said taking pictures of something more interesting than a wall the effect was lost in the detail of the image.I rarely shoot video so for you dear reviewer; I shot some test video of the same white wall. I don't have any fancy video editing software and just watching the video back in lightroom; the darkening effect was pretty uniform across the photo. As with stills if there were any criticism it is very minor and that the corners show up brighter than the centre of the frame. The majority of the frame being uniformly dark. There was no patterning showing in the video.Using a standard ND filter definitely gave a more even darkness to stills but I am planning 3 long trips this year and carrying 5 ND filters everywhere felt like a chore. Now I just need one. If i could I would ding 1/2 a star for the front element size not being 77mm but its a minor inconvenience in the scheme of things.

Great ND filter for Rokinon Lens. Working as expected.

I don’t claim to be a professional photographer or even an able enthusiastic, but I have noticed this ND Filter improving my snaps. This filter is supposed to reduce the light coming into the lens of your camera thus allowing you to increase the exposure time. Now, my pictures have a more polished feel while offering a sense of life. But ultimately, unless my skill levels improve, this lens filter will probably be overkill for me. Well, at least for now.A high-quality piece of accessory that is aimed at the pros. It even has its own shock-proof case.

The NEEWER 58mm Lens Filter Kit Compatible with GoPro Hero 8 7 6 5 is a very fine set that includes all the filters, adapters, and caps you'll ever need for that 58 mm lens. I tested the circular polarizer and each of the neutral density filters on a Sony A7RIV with a 45mm Samyang lens with a 58mm filter ring adapter. The nearby photo with the with the brightly lit barn was shot with the polarizer and an UV filter. As you can see, no vignetting whatsoever. The barns in shade photo was taken with an UV filter, the polarizer, and a ND32 filter. Again, no vignetting. I had the same results with the other ND filters. These filters will not adversely affect your shots. It's a great $49.99 kit and I highly recommend it.

This filter is amazing both Nd & polarizer. I use this filter for video to have my shutter double the frame rate and aperture low. The polarizer gets rid of the glare & reflection really well. Overall it’s a great filter I highly recommend it for run and gun filmmakers.

This is an amazing deal. Not just for the Polarizer or ND Filter. The TWO Lens Hoods are well worth it also, plus 2 carrying cases pluslens cover and cord/plastic attachment so as not to lose the lens cover. Regarding the polarizer > it works great. Hopefully my attached image ofcar reflections makes it in here. It also takes the shine off leaves, if you turn the polarizer dial. I tried other filters at camera store costing over 120$ and don't see any differences. For the price and number of items and lens protection this is well worth it.

I call this my waterfall filter--so convenient to have a polarizer to take out the glare, and then just dial in the amount of ND to get whatever shutter speed you desire. No filter stacking or constantly changing ND filters as light conditions change. Awesome!

This ND filter has its uses for example blurring the movement of waterfalls without over exposing the rest of the shot. Unfortunately for my use it is not dark enough. As I am just starting with experimenting with long shutter times I thought the range of this filter would be fine but I didn't really appreciate how long my shutter would have to be open for the light conditions I have and the effect I want. I really need a ND1000 (10 stops). That's not to say there is anything wrong with this ND filter it works fine is well built comes with a storage box to keep it well protected with an included cleaning cloth. I should have just read up a bit more before getting this as it's not dark enough for me.Something else to think about I couldn't get the lens hood on the lens after this was fitted.