NISI 150mm System Filter Holder for SIGMA 12-24mm f/4 Art Series

QUICK OVERVIEW

Feature:
Special designed for Sigma 12-24mm f/4 Art Series
Hold 2 150mm filter at the same time
360 degree rotating
No vignetting at 90 degrees rotation, with some vignetting when rotate to other degrees (We offer a solution with no vignetting using the 180mm system NiSi Sigma 12-24mm f/4 HSM ART Series Adapter for NiSi 180mm Filter Holder)