參考:
https://www.ditzco.com/
https://www.ditzco.com/products/3-pack-neutral-density-filter-kit-for-dji-phantom-3-quadcopter-drone
https://www.ditzco.com/products/circular-polarizing-camera-filter-add-on-for-dji-phantom-3-quadcopter-drone
P4 Pro接環加HK$20要預訂等兩星期
https://www.ditzco.com/products/nd-and-polarizing-filter-adapter-for-dji-phantom-4-pro