B + W 77mm #502 Color Graduated Filter - Dark G...

Buy it:
$80.00 at Adorama
B+W 77mm #102 Neutral Densit; [ship est. $4.45]

[Auth B+W Dealer!] 77mm #102 Neutral Density (ND) 0.6 Glass Filter FILTERS-Neutral Density Buy it:
$47.50 at B&H Photo-Video-Pro Audio
B+W 77mm (x 0.75) #101 Neutr; [ship est. $4.45]

[Auth B+W Dealer!] 77mm (x 0.75) #101 Neutral Density (ND) 0.3 Glass Filter FILTERS-Neutral Density Buy it:
$47.50 at B&H Photo-Video-Pro Audio