Optics 52MM HD Multi-Coated Variable Range (ND3, ND6, ND9, ND16, ND32, ND400) Neutral Density (ND) Fader Filter - 6 Filters in 1! For The.., By PLR,USA - Walmart.com - Walmart.com
APM Herschel Wedge w/ ND3 Filter - 2" - David Astro
Tiffen 6 x 6" ND 0.9 Filter (3-Stop) 66ND9 B&H Photo Video
New 77mm Tiffen NATural Neutral Density ND3 Filter MFR # W77NATND3 884613034818 | eBay