Outdoor filming requires about 6-10 stops of light reduction to allow filming at wide apertures (below f/8).
Breakthrough Photography 77mm X2 Solid Neutral X2-ND6-77MM
$99
Each glass surface includes four layers of anti-reflection coating
Nano coating provides an improved beading effect with water
Hoya 77mm ProND64 Filter XPD-77ND64 B&H Photo Video
$83
4.5/5 stars
Metallic ACCU-ND Coating
One-Piece Aluminum Ring
Tiffen 77mm Digital Neutral Density Filter Kit 77NDK3 B&H Photo
$119
4.5/5 stars
Neutral Density 0.6, 0.9, 1.2 Filters
Hoya 77mm Pro 1 Digital Neutral Density 64x Filter XD77ND64 B&H
$120
Almost 5/5 stars
B+W 77mm SC 106 Solid Neutral Density 1.8 Filter (6 Stop)
$73
4.5/5 stars
(single coated)
Brass filter ring
