K&F Concept 77mm ND2-ND400 Variable Filter (1-9 Stop), 24 Layers of Nano-coating, Dazzle Series-KF01.2362V1

Features
【1-9 Stops ND2-ND400 Variable】
ND2-ND400 variable filter is intended for long exposure and motion blur techniques in changing light. Reduces light intake from 1 to 9 stops without affecting color balance