NiSi True Color ND-Vario Drop-In Filter for ATHENA Lenses (1 to 5-Stop)

This True Color ND-Vario Drop-In Filter for ATHENA Lenses from NiSi is specifically made to provide from 1 to 5 stops of exposure reduction for your ATHENA lenses. The variable density allows you to precisely adjust exposure in rapidly changing conditions without having to swap filters, to keep consistent exposure as well as depth of field. It remains neutral over the full spectrum of visible light without color shifts as you adjust its density. Featuring optical glass construction with nano coatings set in an aluminum frame, this durable filter has a 0.8 MOD gear so you can control the density by hand or via a lens motor.