Even if the GoPro cameras take very good pictures with the basic equipment, in certain situations you can't get any further without the appropriate filters. The filter set from K&F Concept offers very good quality here.

I have been a big fan of the filters from K&F Concept for a long time. I have also been using the filters from this manufacturer on my drone for some time and am very happy with the results. The filters for the GoPro also really impress me.
The filters fit perfectly on the GoPro (in my case the Hero 9). They can be changed in a few seconds and hold just as securely as the original glass of the GoPro. Since the filters are only slightly heavier than the original glass, there are no problems with using a gimbal.

I really like the fact that this set combines ND and PL filters. So you have the combination of "sunglasses" and polarizing filter directly in one filter attachment. The filter is rotatable so that you can also adjust the direction of the polarization. On bright summer days, or even in the snow, the filter set can noticeably improve the images. In most cases, however, the ND8 or ND16 filter will be used. The two higher filter levels are primarily suitable for long exposures or in extreme sunshine.

The optical quality of the filters is very good. There are no problems with distortion or other image disturbances. In terms of quality, there is absolutely nothing to complain about with the K&F filters.

Conclusion: A very good filter set at a reasonable price (currently around 70 euros). I can only recommend the filters from K&F Concept, I have never had any problems with this manufacturer. Definitely a full 5 stars.

The GoPro's 9 / 10 / 11 take really good pictures straight out of the box, but with the help of ND/PL filters the pictures are even better. That's why I decided on the set from K & F. The set was delivered in a storage box.

The filters are simply placed offset to the left, then turned slightly to the right and thus fixed. This means that you can always change them quickly. I use the ND/PL filters for photos and videos, whether for drones, system cameras or action cameras. This is because the colors come across more effectively and better. I mostly use the ND8PL and ND16PL for ND/PL filters. ND32PL when it is extremely bright, in winter when there is snow, on days with cloudless skies and clear sunshine. The ND64PL softens the fast movements in waterfalls and clouds, which comes across as silky good. Everything else is razor sharp. It's best to try it out for yourself and then compare the results.

The quality of the materials, including the glass, is impeccable and the workmanship of the filters is good. They are easy and quick to attach, they hold reliably, fit perfectly and the images are more professional.

The PL filter minimizes glare and reflections. The images are also more colorful and have more contrast.

Explanation of the ND filter: I use them for long exposures and depending on the sunlight. This allows you to take softer images.

What is a gray filter/ND filter? A gray filter is a filter where the glass is darkened over the entire surface so that less light can penetrate the lens.

This makes it possible to choose longer shutter speeds and achieve the corresponding effects, such as misty water or soft, elongated clouds. This would not be possible without a filter, as the image would be extremely overexposed or even completely white.

About the gray filters:
Gray filters are available in different variations with confusing, different names from different manufacturers. I don't want to go into the different manufacturers here, just the different names. I had to read through it first, but basically it's easy to understand.

The names for this set mean:

ND8 = slowing down the shutter speed by 3 f-stops to extend the exposure time

ND16 = slowing down the shutter speed by 4 f-stops to extend the exposure time

ND32 = slowing down the shutter speed by 5 f-stops to extend the exposure time

ND64 = slowing down the shutter speed by 6 f-stops to extend the exposure time

This allows you to create outdoor scenes very effectively and effectively. By using the different filters you will see how beneficial they really are. Every professional works with such filters ;-)

The polarization level can be adjusted with these ND/PL filters. I am very happy with this filter set and can definitely recommend it.

Thank you for taking the time to read my review. I hope that I was able to help you a little with it, including with the photos.

I've always used K&F because of the quality, this kit is ideal for controlling light when filming or even photography, these filters stop that over exposure and give you much better results and less editing later. I use Nano-X series with the GoPro HERO12 with great results, many thanks K&F.

Four filters are supplied, which can be easily attached to my GoPro Hero 10. All four filters make a very valuable and flawlessly processed impression. It can be fixed with a single movement and then the filters are firmly in place. Even if you ride the bike over roots and other bumps, the filters stay in place. So there is no risk of losing them. However, they can be easily removed again. The shots with the filters are sharp, but the colors come through more strongly. Especially in bright sunshine or fast-flowing water, the shots with the filters are much more convincing and look professional.

I really like the circular polarizing filter. The ND filters are a bonus as they add motion blur and can achieve faster shutter speeds.

K&F Concept - 4 pack ND/PL filter sets (ND8/PL,ND16/PL,ND32/PL,ND64/PL) The filters are very well made and make a valuable impression. Assembly is easy and hassle-free. The filters have a good effect without producing negative image effects. Contrast and saturation of the images improve significantly. Glares caused by reflections are also well reduced. The price is fair for the good and valuable filters.

If the CP was a little more effective I would have given it 5 stars. I usually use B&W or PolarPro on my regular cameras, so I'm familiar with regular and circular polarizers. I have a feeling this one helps, but it could be a lot stronger. ND's are great. Build quality is very good of all, they fit just like the OEM lens cap. Overall this is a good deal.

Here you get a practical filter set for the GoPro Hero. The optical properties of the filters seem to be very good and at a fair price. The filters fit easily on the GoPro Hero. I have had good results with these filters.

Good filter set with all conceivable possibilities. Good workmanship and perfect fit. I can't complain and give 5 stars.

great set of filters for the GoPro. It comes in a nice plastic case where the filters can be stored well padded. The filters themselves are top quality and made of high quality material. They are used to adapt the camera even better to the given lighting conditions. They are super easy to mount and remove from the camera'. I give a clear recommendation