Simple DIY GoPro Hero 2 ND Filter

Hello, flitetest forum! Long time watcher and browser, and I finally have something worth posting! I've built a pretty simple and cheap ND4 filter mount for the GoPro Hero 2. I've found that using an ND filter on my GoPro lens greatly reduces the rolling shutter "Jello" coming from even the tiniest vibrations. All you need is a 27mm ND4 filter, which you can get here, a water bottle lid, some spray paint, and CA glue. I'll include a few pictures and the link to the post on my blog if you want some more detail. 

Here is the ND filter next to the water bottle lid.

Basically, cut out the top of the water bottle lid so that it has a hole the size of the GoPro lens.

Make sure that the lid fits very snugly on the lens, as it will not be glued. I then gave it a few coats of black paint to block out any stray light.

All that's left it to attach the ND filter to the lid and glue it up! I used a few drops of CA where the threads of the filter meet the lid to make sure it doesn't go anywhere.

There you have it! A cheap, easy, and good looking ND filter for your GoPro. 

Here is a short video of it in action. This was the first revision I made, using a blue bottle cap with no paint, hence the blue tint at some times. I actually think it looks pretty cool and a little different from the standard GoPro "yellow oversaturation" look.