First of all, English is not my first language so what I'm going to write now can sounds very wrong or maybe even arrogant, please don't take it that way, I'm only writing this to help. Ok here we go. The last month or two this Forum have been filled with Gimbals and lens Filter talk. I'm not going to talk about the Gimbals (whish I had one) I'm going to talk about the filters. Again please don't get this wrong, but I think a lot of the people who want the filter and filter mount actually don't know what they are talking about. But when so many people are writing about it, they also want one So why do I think that people don't know what they are talking about? First of all, I have been a professional Photographer for around 20 years (and still are), so I know a little about cameras and filters. I really cant see the idea with a filter on a flying thing, because most of the filters people are talking about are polarizers and ND (Neutral density) filters, which all are taking or blocking some light to the camera. A polarizer can easy take two whole steps (4 times less light) of light which mean you get slower shutter times to compensate (for photography)! When the camera are hanging underneath a flying and vibrating object you want as fast shutter time you can get, or you photos will be blurry, and with this camera that already are bad quality you will not be happy with the result. Remember the Vision have a fixed aperture (f2.8) which means it can only change the shutter-time to get a correct exposure. The ND filter is different because you can buy them the with different density but again why on earth do you want slooooooower shutter time???? Please if anybody can explain that for me. Maybe you will say ok, that is for Photography but I'm taking Video Think about this: A polarizer have different effect compared to the angle of the polarized light. Normally when you are using a polarizer on a normal camera on the ground, you point the camera towards what you are going to photograph and the you turn the polarizer the get the wanted effect. You can't do that when the Camera are hanging 100m above you. Which means when you are shooting your video, the effect of the polarizer will change all the time when you are rotating the Phantom which you will do a lot. So everything like the Color saturation, the clarity, reflections and so on will change. Ok I haven't tried it myself on video, but that is how a (circular) polarizer are working. For the ND filter, its kind of the same but you use them for different things. Many photographers are using them when there are a lot of light, yeah so much light so the can't open up the aperture to get a more shallow depth of field, like a portrait where you want a blurry background. Normally the Depth of field are controlled by 3 things: The aperture, the focal length and the distance to the subject and background. But again remember you cant control the aperture on the vision. Maybe the ND can give you good results in one direction but as soon as you turn the Vision it will be totally different. So again, please enlight (is that a English word?) me here. Another thing, I can see the filters people are buying are very cheap filters (I have seen Peter have been writing the same thing) which means you are putting a cheap peace of glass in front of another cheap piece of glass, and you still expect great results. Yeah you actually expect better results, that why you are buying the filters Hope it all makes sense.