Cut the glare, capture what's beneath the surface

The K&F Concept CPL Filter for GoPro Hero 9, 10, 11, 12, 13 Nano-X Series | KF01.2336 is designed for adventure filmmakers and content creators who shoot around water, glass, or open skies where glare and washed-out footage degrade the final result. A circular polarising filter removes reflections from non-metallic surfaces like lakes, rivers, car windows, and wet rocks, letting you capture what's beneath the surface instead of a blown-out mirror effect. It also deepens blue skies and adds contrast to clouds, delivering the dramatic separation you see in professional landscape work without needing to fix it in post. Built with imported AGC optical glass and 28 multi-layer coatings, this filter maintains the GoPro's native colour profile and sharpness while protecting the fixed lens from scratches, dust, and spray. The snap-on aluminium frame attaches in seconds without tools, and pre-aligned polarisation marks let you dial in the correct angle for horizontal or vertical shooting without trial and error. At 7g, it won't unbalance gimbals or helmet mounts, and the hydrophobic coating keeps the lens clear in rain or spray so you're not constantly wiping mid-shoot. This filter is for above-water shooting only, ideal for kayaking POV, coastal hikes, waterfall scenes, or any environment where surface glare obscures your subject.

Eliminating glare from water and glass
The primary function of a CPL filter is to remove polarised light reflected off non-metallic surfaces. When you're filming a waterfall, lake, or coastal scene, the sky reflection on the water surface often obscures the texture and detail beneath. The circular polariser filters out that reflection, revealing the water's movement, colour, and depth instead of a flat mirror glare. The same principle applies to car windows, wet rocks, leaves, or any glossy surface where you want to see through rather than bounce off. The pre-aligned white marks on the rotating ring indicate optimal polarisation for horizontal or vertical orientation, so you can set the correct angle in seconds without watching the screen and guessing. This is particularly useful when shooting fast, the light is changing, or you're switching between landscape and portrait orientation for reels or stories.

Dramatic skies without post-processing
Beyond glare control, the CPL filter increases saturation and contrast in blue skies and white clouds by filtering scattered polarised light. GoPro's ultra-wide lens captures huge amounts of sky, and without polarisation that sky often renders as a pale, flat wash that kills the drama of a landscape or action shot. The filter delivers richer blues and defined cloud edges straight out of the camera, reducing the need for heavy grading in post and giving your footage a more polished, professional look. This effect is strongest when shooting at a 90-degree angle to the sun, typically mid-morning or mid-afternoon, and works in both photo and video modes.

28-layer coating for optical clarity
The filter uses imported AGC optical glass with 28 multi-layer coatings and 0.2% reflectivity, a spec that signals serious optical engineering rather than a cheap tinted-glass filter. The nano-coating includes an anti-reflection green film that suppresses internal reflections and flare, preserving contrast and colour accuracy in high-contrast scenes where cheaper filters introduce haze or ghosting. This matters when shooting into the sun or mixed light where flare would normally wash out your subject and flatten the image. The coating also maintains neutral colour transmission, so footage shot with the filter matches your GoPro's native colour profile without the cyan or magenta shifts that budget filters introduce. You can cut between filtered and unfiltered clips in the same sequence without a visible colour break.

Scratch and weather protection
The hardened surface layer resists abrasion from sand, grit, and incidental contact during handling and storage, protecting the GoPro's fixed lens from permanent damage in environments where a scratch would ruin the camera. Desert, beach, and mountain conditions where dust and sand are unavoidable become less risky with the filter in place. The hydrophobic nano-coating causes water to bead and roll off the glass surface instead of spreading into a film, keeping the lens clear in rain, spray, or humid conditions. Filming whitewater rapids or coastal surf where spray hits the lens every few seconds becomes more practical because you're not constantly wiping the filter mid-shoot. The oil-proof coating also repels fingerprints and smudges, making cleaning faster and reducing the risk of scratching the glass with repeated wipes.

Lightweight and gimbal-safe
At 7g and 5mm thick, the filter adds negligible mass and bulk to the GoPro's compact form factor. This maintains the camera's balance on gimbals, helmet mounts, and chest harnesses without throwing off stabilisation or adding noticeable weight. Mounting the GoPro on a drone gimbal where every gram affects flight time, or wearing it on a chest harness for hours during a hike, the filter doesn't change how the setup feels or performs. The aluminium frame is machined to tight tolerances and snaps directly onto the GoPro's lens housing without adhesive or threads, attaching and removing in seconds without tools. This lets you adapt to changing light conditions mid-shoot, switching between polarised and unpolarised shots as you move between shaded forest and open water.

The K&F CPL Filter for GoPro Hero 9/10/11/12/13 | KF01.2336 is a practical upgrade for adventure filmmakers who want cleaner water shots, richer skies, and lens protection in challenging conditions. With AGC optical glass, 28-layer coatings, and a snap-on design that doesn't affect autofocus or gimbal balance, it's a reliable tool for above-water shooting where glare and washed-out footage would otherwise degrade the final result. Order the KF01.2336 today and capture what's beneath the surface with confidence and clarity.

Technical Specifications:
 - Filter Type: CPL Circular Polariser
 - Glass Material: AGC Optical Glass with 28 multi-layer coatings
 - Reflectivity: 0.2% ultra-low reflectivity
 - Coating Properties: Nano-coating (waterproof, scratch-resistant, dustproof, oil-proof)
 - Frame Material: Aluminium with black and orange finish
 - Compatible Models: GoPro Hero 13, 12, 11, 10, 9 Black
 - Dimensions: 3.3 x 3.3 x 0.5cm
 - Weight: 7g