Weird Feeling In Stomach

No more than trying

One of the problems when GoPro films a propeller is the unpleasant effect produced by its sensor (rolling shutter): helices become "soft" or a sword. Look at the beginning of the video.

The video shows, a neutral density filter (ND filter) greatly reduces this effect by blurring the entire circle produced by the propellers. The author places a filter with a homemade adapter.

There is also the solution of the filter placed in the waterproof, between the device and the glass in front of the lens. Thanks to Susana who brought me one of the United States (source: Eye of Mine), the small filter (see photo) found its place in my waterproof case.

Now Yapluka find a sunny day and test it all. Again thank you Susana!

PS: The site Eye of Mine is full of tricks and gadgets of all kinds for the GoPro. To see.