This is a review of K&F Concept 62mm Black Diffusion 1/4 Effect & Variable ND2-ND32 ND Filter 2-in-1 for Camera Lens with 28 Multi-Layer Coatings (Nano-X Series)I bought this to use with my Sony ZV-1 on which I have a Newer LS-18 Wide Angle/Macro conversion lens 0.75x. I was disappointed, but not surprised that there was very apparent vignetting at the corners of the photos. This is due to the wide angle lens. You can crop the photos in post production to eliminate the vignetting. Not ideal but that's what you have to do.If you use this on a normal lens and aren't stacking additional filters, I'm quite sure you won't have an issue with vignetting.The 62mm variable ND, 1/4 diffusion filter is great. The filter allows you to shoot longer exposures at slower shutter speeds in bright light conditions allowing you to get awesome shots that would otherwise be impossible to get without the filter. It adjusts to give you between 1 to 5 stops reduction. And since it's also a 1/4 effect diffusion filter, it gives a somewhat soft diffusion effect to the photo and is great to use for portraits.This is very nice quality filter and priced less than other comparable filters.

I am one of those photographers who keeps a circular polarising filter on my lenses full time. Recently I purchased a Urth Gobe 67mm for my 70-300mm F4L lens. Although this is a heavy zoom lens, I find that I can handhold it to produce photomerge panoramas. I wanted to see the effect I could obtain / create with a Variable ND filter. One word, OUTSTANDING. I was so impressed that I recently purchased a 77mm Urth Variable ND filter for my 20-105 lens. Haven't tried this one out yet but I am confident it will produce excellent results.The filters come in metal containers, the glass appears to be without any blemish or flaws.Delivery was as promised, so happy customer.

The thread is not the same, connect with 37mm lens, but another side, seems could connect 43mm accessories, i am not sure.Yes, it has the cross/X pattern near the maximum settings, but so does every single variable ND filter made.

Great ND variable filter, no problem to fit my Canon DCLR

This is the best variable ND filter I've used so far. The ND2 - ND400 range makes this very versatile. Even better is the fact that it attenuates light evenly. Usually, cheap variable ND filters have a problem of turning images purple the darker they get. This doesn't have that problem. Awesome product

I researched for a variable ND filter that didn’t cost an arm and a leg and came across this one. So far from what I can see it does exactly what it is suppose to do. The filter feels like it is great quality and it comes in a nice case. I’m using it on a LUMIX G85 with a 25mm lens.

This filter is well made and high quality. I love the fact that it combines a variable ND with a black diffusion filter. This way I don't have to stack filter which helps avoid vignetting at wide angles. This is perfect for filmmakers since it includes ND2 to ND32.it would be nice if it could have gone to ND64 just to cover the most used values and allow the most flexibility without having to stop down the lens.

The K&F Concept 77mm Variable ND Lens Filter ND3-ND1000 (1.5-10 Stops), Putter Adjustable HD Neutral Density Filter with 28 Multi-Layer Coatings for Camera Lens: This is a variable neutral density filter of the finest quality with little to no color shift. it covers 10 stops of adjustment and is perfect for video or very shallow depth of field photography. Everything about this filter is top quality. from the packaging to the leather filter holder. There is a Pulltab on the side to eject the filter and a finger nub on the filter itself to rotate the ND adjustment. This is a very fine piece of glass that you don't need to think twice about putting in front of your best lenses. In the past I've had problem with harsh color shift with other vari NDs. So far this seems great. I will report back if I find anything I didn't see in my first impressions. This is a premium vari-ND that I recommend to pro photographers and videographers. Very high quality materials and very well made. Nice glass.