08/02/2026
I got this to test on my action camera 4
It is very nicely presented in a plastic carry box and the lens really secure inside allowing for transportation without the worry of damage and or scratching.
The filter fits my DJI Action Camera 4 perfectly and is very slim and looks great.
The threads are perfect and the materials (aircraft grade aluminium) are as good as it gets this fits perfectly without an issues. Once finished remove and put safe away in the case. Just remember can’t be used under water.
This is an amazing piece of kit and works much better than I anticipated, the reduction in reflection and glare was amazing, im tempted to buy the set of 4 made by the same company.
Happy to recommend
It is very nicely presented in a plastic carry box and the lens really secure inside allowing for transportation without the worry of damage and or scratching.
The filter fits my DJI Action Camera 4 perfectly and is very slim and looks great.
The threads are perfect and the materials (aircraft grade aluminium) are as good as it gets this fits perfectly without an issues. Once finished remove and put safe away in the case. Just remember can’t be used under water.
This is an amazing piece of kit and works much better than I anticipated, the reduction in reflection and glare was amazing, im tempted to buy the set of 4 made by the same company.
Happy to recommend
06/02/2026
Great for shooting in very bright conditions , usual good quality from K&F which I use on most of my cameras.
05/02/2026
K&f has good accessories for photography and this filter works very well on my Osmo action 4, although it gives a little violet tint to the image but is corrected during editing. For its price it works well
04/02/2026
It meets the described characteristics exactly
I was surprised that I dropped it and it was in perfect condition, nothing happened
I was surprised that I dropped it and it was in perfect condition, nothing happened
03/02/2026
I purchased the PL and three ND filter set to use the PL to protect the lens from rain, grit, handling abrasion and bug splats when riding my motorcycle. The fit is good and installation is simple - just press it over the lens. I wish K&F sold a four pack of the PL filters as lens protectors because these are consumable items. The "nano coating" wears off easily. These press-on filters also make your action camera less of an action camera. The nano coating on the PL lens seems hydrophobic. Water beads and runs off fairly easily. However, the ribbed rubber press fit over the lens allows rain or humidity to enter the area between the lens and the filter where it fogs the lens. This situation typically resolves itself in a few hours after the rain if you don't want to disassemble optics and clean them when on your action camera adventure.
31/01/2026
This polarizer lens for my Osmo 4 fits perfectly and works amazingly well at removing glair from glass, water and enriching the colors of things like the sky, grass making the quality of shots from the Osmo even better than ever. Great quality glass and the variable feature is superb. 10 out of 10 highly recommended
30/01/2026
Nice build quality, and installs quickly and easily (once you get the factory filter off, which is a bit difficult sometimes).
Great for cutting down glare on reflective surfaces like bodies of water and automotive paint, this filter has been working nicely on my Action 4.
Great for cutting down glare on reflective surfaces like bodies of water and automotive paint, this filter has been working nicely on my Action 4.
27/01/2026
Be warned that these filters don't freely rotate. It's not a problem with the NDs, but limits the usability of the circular polarizer. Quality is top and work as expected.
27/01/2026