I am new to the drone world but having recently got the DJI Mini 4 pro as a keen photographer I had been looking and waiting for some good quality ND filters to become available. I had read really good things about K&F filters. Also in the forums people would comment how good they were on the M3P but the fitting was different so I was pretty confident when ordering that they would be good quality.

The filters come in a hard case, each filter is in a cut foam pad so they are very secure in the case and when you open them they don't fall out or move. you do have to really pick to get them out.

Each filter is clearly labelled on the top of the rim what level ND it is and the circular polarizer is the only one with a movable bevel around the filter.

To fit them you need to hold the lens and gimbal secure but not too firm and twist off the housing in front of the lens, this can then be stored in the case, take the filter and line it up and gently twist it on, you do need a little pressure and once it is level and clicks in you are good to go.

I have found them to be high quality, easy to use and they do make a huge difference to the camera for photos and videos. I can highly recommend them.