Check out Haida’s filters here: http://www.haidaphoto.com
Buy it from BH here: https://www.bhphotovideo.com/c/product/1450884-REG/haida_hd4306_m10_filter_holder_kit.html/BI/6857/KBID/7410
In this video Lee Morris reviews the Haida M10 filter holder/kit. While testing this lens kit a rouge wave hits the camera and immediately beings corroding exposed metal. The battery grip port on the bottom of the Nikon D850 was exposed and corrosion caused the camera to stop working.