100x150mm Graduated Neutral Density Camera Filter Kit #5 (3-Filter ND Graduated Hard Edge Kit) Compatible with Formatt-Hitech 100mm Filter Holder Hard edge grads have a hard line transition from clear to ND. Perfect for sharp horizons like bodies of water and landscapes with hard transitions from bright to dark. Made from the highest quality optical resin 150mm long for easy vertical adjustment to your scene Compatible with Canon, Sony, Nikon, Tokina, Sigma, Zeiss, Panasonic, Tamron, Samyang, Rokinon and other lens brands