Tiffen 72mm Variable Neutral Density Filter – Birns & Sawyer
Amazon.com : K&F Concept 72mm Variable Fader ND2-ND32 ND Filter and CPL Circular Polarizing Filter 2 in 1 for Camera Lens No X Spot Weather Sealed : Electronics
K&F Concept Nano-B Filtro 72mm ND2 ND400 Variabile Ultrasottili HD (1-9 stops) in Vetro Ottico con Panno in Fibra per obiettivi 72mm - K&F Concept
NEEWER 72mm Filtro ND Atenuador Variable Filtro Densidad Neutra ND2 a ND32 (Detención de 1 a 5) para Lente Cámara NO X Spot Ultra Delgado Sellado por Clima : Amazon.com.mx: Electrónicos
Filtro ND8-ND2000 Variabile K&F Concept 72mm Filtro ND Variabile Ultrasottili HD (3-11 stop) con 24 Strati Rivestimento Nano in Vetro Ottico per obiettivi 72mm (D) - K&F Concept