These filters screw on easily, and the variety of ND filters give good options for bright days or to produce motion blur video. I’m also excited to try the CPL filter.I’ve bought lots of K&F products, and these seem of really good quality and hardness, in a nice case.As they don’t cost much more than a stock Insta360 lens guard, it’s a must-have accessory for your Go Ultra.

This pack of ND filters are of a great quality and fit my action camera perfectly. They make a big difference when trying to achieve the appropriate shutter speeds in brighter conditions. The optics appear clear with no discernible degradation in picture quality.Overall, a fantastic product that I find easy to recommend

PROS-excellent and solid fit to my Go Ultra-absolutely necessary filter set to stick to that 180 rule for video (or to stretch time for photos)-good optics (no distortion, sharpness seems to be unaffected)-decent locking case (not too large)-at only £26.99, I think these are very good valueCONS-a very slight colour cast at ND32 and a bit more at ND64 (but correctable), I find this to be pretty typical with almost any ND32 and ND64 though-I don’t use a CPL all that often (I would, if I could combine it with an ND), but this one seems effectiveMY STAR RATINGS:1* substandard, mostly cons2** barely acceptable, cons outweigh the pros3*** meets the basic requirements, cons balance the pros4**** good product, pros outweigh the cons5***** exceptional, all (or almost all) pros

I recently tried the K&F Concept 4-Pack CPL ND8 ND16 ND32 Filters designed for my Insta360 GO Ultra, and they are a fantastic upgrade for anyone looking to elevate their footage. This set includes a CPL (Circular Polariser) and three neutral density filters (ND8, ND16, ND32), gives you a number of options to control exposure and reduce unwanted reflections. - like sunglasses for your camera... wear your sunglasses and look at the clouds and see the difference, this is how they change your footage and make them just... chiefs kiss.Over all performance:The CPL filter works wonders for cutting glare on reflective surfaces like water or windows, making colours appear richer and more vibrant.The ND filters allow for more cinematic motion blur by slowing down the shutter speed without overexposing the image, even in bright daylight.The combination of these filters makes footage look smoother, with improved contrast and a professional finish - check your shutter speed if you are in Manuel mode for smoother footage.Build Quality:The filters are lightweight yet feel sturdy, perfectly balanced for the Insta360 GO Ultra.They attach securely and do not disrupt stabilisation or introduce vignetting. Easy to fit.Overall Impression:These filters are a must-have for creators who want to achieve more polished and dynamic shots. Whether filming landscapes, action footage, or urban scenes, they give a noticeable boost in image quality and creative flexibility.

As in the announcement!

I have purchased a couple of K&F products and all of them have done exactly the job I bought them for. The packaging and presentation is good and the lens filters fit perfectly on the Insta360 GO Ultra.Having tried the camera with and without the definitely improve the footage in bright light and reduce blown out areas nicely.

Great ND and CPL kit for the price as expected from K&F. Build is premium and the glass does not have negative effects on the image quality. Threads well into the camera. Comes well packaged but I would get another case as the one it came with is just a plastic box

With this CPL and ND filter set made of high-quality AGC optical glass with nano coating, your Insta360 Go Ultra is well equipped. ND8, ND16, ND32 and a CPL filter are offered here for less than 30 euros in the usual K&F Concept quality. This allows you to naturally improve the image even in summer when there is strong sun influence.

Great CPL, ND8, ND16 and ND32 filters for Go Ultra! They are contained in a plastic box, well protected from shocks and scratches. They are mounted on the Go Ultra by unscrewing the “standard” lens protector and screwing them in place. They are designed to fit exactly like the official ones. The diameter changes slightly, an important detail if you use protective shells for the “Standalone Camera” because depending on the model it may be necessary to screw them in only after applying the shell. The glass of these lenses is optically neutral, free of chromatic dominants and without compromising sharpness. The CPL filter obviously has its swivel ring to allow you to adjust the angle of the polarizing filter and obtain the desired effect. They are marked on the outer edge so that you can locate the desired filter. Clearly they are technical tools that do their best in the hands of experts who know when and how to use them.

Great value for money!