These filters are top notch. Everything about them has a quality look and feel. Nice cases, each filter is well marked and they fit the camera very nicely. I have picked up multiple filters from this company and they are always top notch.

If you’re into photography then you’re probably familiar with the name K&F Concept. And if you’re not, they’re makers of high grade optical components.

This ND (Neutral Density) filter set will have you covered for any of your photo or video shoots in which you need to ‘force’ the cameras shutter to remain open longer than usual. These filters act like sort of sunglasses for your cameras lens and they are predominantly used for adding movement to your photos (such as a flowing waterfall against a static backdrop).

Made from multi coated high grade optical glass and metal, these filters are excellently machined as are all K&F Concept products.

The set comes with six filters of varying grades of shading, from light to darker and they’ll bring your photography to the next level by allowing you to get the exact exposure you’re looking for.

One of the great things about the GoPro is the third party ecosystem that supports its products. There's even growing support for the DJI Action 3 and the Insta360. All are excellent cameras but they're still playing 'catch up' with the myriad of options found in the GoPro ecosystem.

These filter types are very well known to anyone familiar with photography (CPL + ND 8 + ND 16 + ND 32 + ND64 + ND1000). The ND filters allow you to reduce the effects of ambient light no matter what sort of weather. I probably use the CPL filter more than anything across all of the cameras I own--it eliminates 'streaking' and reflections. This is particularly important if you're taking pictures of or around the water or on a snowy day.

The K&F Concept kit is nothing fancy--just well made adaptations of these fundamental filter types that fit perfectly on my GoPro Hero 11 and Hero 10. It's extremely easy to install on the camera by just twisting and removing the OEM filter. It's fit and functionality is identical. The filters come in a pair of plastic cases and are well protected. It would be great if they had some water resistance but it's hard to complain when they're otherwise so good. Best of all, they're sold at a very good price point. Highly recommended!

All filters in the set fit perfectly on both my Hero 10 & 11. The filters snap on easily and have stayed in place while biking. Filter build quality is excellent featuring what feels like premium glass with nano coating. The included case is also of good quality and snugly holds on to the filters to minimize any movement. After my first few bike rides I checked the footage and was impressed with the results. On an especially bright day these filters made a noticeable impact on glare reduction. So far I'm impressed with this filter set.

This is a nice set of filters that gives you a wide range of creative ability. If you own a GoPro, you know that shots get blown out easily if you are filming sunrise time-lapses, photos during the middle of the day, or sun glare in the snow, etc. Filters are must if you want great images.

These are good quality and easy to take on and off. The biggest challenge is if you have a new GoPro and have never removed your lens cover before. It takes a little wiggling and firm pressure, but you should be able to rotate the filter off and install one of the filters from this set instead. I like to leave the CPL filter on because I shoot in and around water daily and it helps to reduce glare and see beneath the surface.

K&F makes good products and I've purchased their gear in the past. Aside from being slightly more expensive than it's competitors, I trust the name and feel it's a good deal for just over $10/each (with the current coupon offer), especially if you are planning creative photography with your GoPro.

You can virtually do without it by increasing the number of frames per second on the GoPro, but the rendering is not the same.

This product allows me to obtain very contrasted images, without loss of light or color when flying an FPV drone (on which the GoPro is mounted) while maintaining this characteristic motion blur.

These lenses have been excellent thus far.

They've served their given purposes without a problem helping to grade out harsh sunlight.

Their included cases are quite nice and have been suitable for storage in a side pouch of the camera bag.

Extremely pleased overall.

For the price these are literally amazing. Most ND filters you see are over the top expensive, these are great for money and they are absolutely superb and easy to use. I have a GoPro hero black 12 and they fit perfectly. I have no issues with them and use it for motorcycle content. I think the best filter to use is the CPL as you can quickly change the filter on the go. If you’re looking for quality these are the ones to get. Plus they look awesome with the gold trim.

Well and safely packaged, very useful when traveling.

A slight color cast in the image is probably unavoidable but definitely within the limits.
Robust enough to withstand repeated assembly and disassembly

I shoot everything in 4K with my GoPro's so MOTION BLUR is everything for a digital-based action camera for any realism. I very much dislike that over-processed digital look without ND filters.
K&F has been a "Go-To" company for me for some time with my filter needs. Great quality that is affordable and doesn't make me hurt too bad every time I trash a filter because an action camera is just that, an action camera, and there are certain risks involved to get "That shot"
These are in my kit at all times and I use the ND8 ND16 almost exclusively and I love the results. I have not had a lot of need for the ND32 but I know that the day will come and I can depend on the 32 to perform as I expect of all of my K&F products.
I like the CPL it does its job well.
If I had it to do all over I would have ordered the ND/CPL combo filters. If you are looking at these filters for your GoPro give the ND/CPL a consideration.
BTW - Did I say that MOTION BLUR is everything!