Sold my phantom, want to upgrade to P4 or mavic. I`m tired of never ending range issues... However I still have Neewer ND filter set, which I will not use anymore. It`s originally designed for Inspire 1, but has an adaptor for P3S. Paid nearly 70$. Put it on ebay for starting price of 10 GBP. The condition of this set is excellent. If anyone is interested, here`s a link: Neewer® FILTERS FOR PHANTOM 3 STANDARD / INSPIRE. 4 PACK | eBay