This is a great combo filter. It comes with a very nice leather-like pouch and feels sturdy and nice. I got the 67mm and it fit perfectly on my Canon RF 85mm f2.0 prime lens -- look on the rear of the lens cap for your lens' diameter. The lens cap fits on top of the filter just fine. I also have an RF 35mm f1.8 with a 52mm diameter -- I ordered the K&F Concept 52mm to 67mm Step-Up Lens Filter Adapter Ring so that I can easily switch this expensive filter back and forth rather than having to buy two filters. One thing to beware of is that it seems like it would be very easy to over tighten this and get it stuck. It doesn't screw on and stop -- you can keep turning it. I nearly went too far the first time I put it on so now I don't tighten it as far as I would like. The filter itself works wonderfully. I like the combined ND and CPL filters. The ND is for removing some light when taking videos (since you can't really adjust shutter speed for videos) and the CPL is for removing light reflections for videos or photos. It makes it look like when you put on a fancy pair of polarized sunglasses on a bright day. I do wish the variable turning handle had some hard stops or even any kind of tactile click when it gets to the next stop, but it is smooth and so you have to have it away from your face and look to see when the dots match up visually rather than being able to click through the settings with the camera up to your face the whole time. Overall though, this is a terrific filter with high quality engineering from a trusted brand. Would highly recommend this.

Bought this for my iPhone. It's the perfect fit for most phone cases with a lens adapter. It's also the perfect size for most mirrorless camera lenses as well. Color shift is minimal as you shift to stronger ND levels. Though, it is present and can be corrected in post. The build quality is solid with physical stops at the lowest and highest settings. This prevents accidentally going into cross pattern territory. Detail and sharpness reduces slightly at highest ND setting.

This is a very well made and packaged K&F filter that offers both a circular polarizer and variable neutral density functionality in a single 77mm package. Build and thread quality is top notch. K&F packages their filters so nicely and includes a solid carrying case. Recommended.

have a number of K&F filters, and I've not been disappointed in any of them. I think K&F uses high quality glass for their filters, and this is preferrable to plastic or cheaper glass. (Yes, in some instances you really can tell the difference.) This is a combination neutral density and circular polarizing filter. The former cuts down on light entering through the camera lens (nice on really sunny days and a must for longer exposures when photographing things like waterfalls and moving water). The latter cuts down on reflections, allowing you to get better shots when shooting through water (such as rivers and ponds) and glass. K&F's promo sheets states their lenses are scratch resistant; I can't vouch for that as I really baby all my lenses and filters and I'm not going to intentionally test this. If you can swing the cost of the K&F Nano-X filters, go for them. They'll last a long time and add minimal to no distortion in your pictures.

As a full time filmmaker I own several K&F filters. They are cheap but have a solid performance. Especially fir your output medium is Social Media or even TV. (I would not use them for Film related projects). One of the problems this ND filter solves is especially when you using a Matte box and you have the ND attached to it. It is really hard to "feel" the filter without looking at it. I have smudged the lens with my sticky fingers several times because I can't really feel the ring while holding the camera. This filter has to nice handles that you can tactically feel easily when using a matte box. Great addition for my camera bag.

This is a two in one variable ND and circular polarizing filter setup. Very smart setup and avoids having to screw on more filters. Both are variable/adjustable individually with the small handles. The quality of the glass is exceptional. Highly recommend.

This K&F Concept lens filter is a versatile and essential tool for photographers and videographers alike. This innovative filter combines the functionality of a neutral density filter and a circular polarizing filter into one sleek unit, allowing for greater control over exposure and light polarization. The variable ND2-32 range enables seamless adjustment of light levels, perfect for achieving long exposure effects or maintaining a shallow depth of field in bright conditions. Additionally, the CPL filter effectively reduces glare and reflections from non-metallic surfaces, enhancing color saturation and contrast for vibrant, true-to-life images. With its premium Nano-X coating technology and precision-engineered construction, this filter delivers exceptional optical performance and durability, making it an indispensable accessory for capturing stunning visuals in any environment.

Great filter for recording outdoors, really quality results, top materials

Bought for my brother who is passionate and photographs for work. He is satisfied with the article. I leave this review after months of use and I guarantee that it is still working and without any defects.

This filter is a must whenever I am out shooting videos and photos. I shoot a lot of client work and this filter never fails to amaze me