DIY ND filter - 1g!

[Wtneo]

just giving a head up on my DIY ND filter

took one of those cheap plastic lens cover, dremel the center out. Cut out the ND4 film I bought from ebay and fixed it to the lens over!

its only 1g!!

 

[Mako79]

just giving a head up on my DIY ND filter

took one of those cheap plastic lens cover, dremel the center out. Cut out the ND4 film I bought from ebay and fixed it to the lens over!

its only 1g!!

That's awesome. Is it effective?

I'm new to this GOpro and ND filter. Can you send me an ebay link to the correct ND filter film you used. There are so many variants. And an ebay link to the Gopro cap. I just don't want to fluff around and end up wait a month for delivery and find its incorrect.
Many thanks in advanced.