Amazon.com : Kenko 77mm PL FADER Variable Neutral Density (ND3 to ND400) Camera Lens Filters : Electronics
Amazon.com : B + W 72mm XS-Pro Vario Neutral Density MRC Nano Filter - 0.3 to 1.5 (1 to 5 Stops) : Electronics
NEEWER 58mm Kit di Filtro ND/CPL/UV/FLD/Close Up e Accessori per Obiettivo con ND2 ND4 ND8, Filtri Close Up (+1/+2/+4/+10), Paraluce Collapsibile in Gomma, Tappo per Obiettivo, Astuccio per Filtro : Amazon.it: Elettronica