So I bought some CPL and ND filters, but found out that all of them doesn't fit onto the gimbal lock that came with the drone.

I proceed to modify the gimbal lock/camera lens cover on my DJI Phantom 4 by cutting out the front part, and stop at where the aftermarket filter lens would protrude.

The drone doesn't really need the front lens cover part, reason being you've already got a UV filter (or whatever filter you have in front of your camera lens protecting the actual lens. As long as your gimbal locks securely during transport, you should be good.

Tools I've used:

Pencil to mark where the lens filter area to be cut
Jewelers saw to cut the plastics off (You can go to home depot and find a mini saw for couple dollars, that also works)
Small files to file the edges flat and smooth (Also at your local hardware store for couple dollars)

Filters I've used and recommend (except the variable ND filter in the pack, which is crap):
http://amzn.to/208V2Pe

Hope it helps the rest of you P4 owners out there who are stuck with no gimbal lock for aftermarket lens filters.

Good job and thanks for your sharing

The Taco-rc filters are the same size as the original and no mods are needed ... just fyi

rwhoffart@gmail Posted at 2016-4-8 10:33
The Taco-rc filters are the same size as the original and no mods are needed ... just fyi

Got it... Thanks!

Do they have a CPL that's rotatable front element?

Here you go ... http://taco-rc.com/phantom-4-accessories/

Great DIY,

We also have a P4 Gimbal Lock launching next week, that will be compatible with our P4 Filters.

Jeff

Polar Pro makes some that fit with the gimbal lock without modification...just letting people here know. I have them, they work great.

well, somehow I guess they don't fit (even though they are essentially the same size as my original lens). But they're making a solution for it so oh well.