R5 Arri MB-20 Reducing Rings will thread into an Arri R4 114mm-100mm (#338246) or a 100mm filter ring (#333060) and your lenses.
These Reducing Rings allows the user to step down to a smaller lens diameter by reducing the R4 114mm-100mm reducing ring or a 100mm diameter of the Filter Ring. This R5 Reducing Ring can reduce the current diameter (100mm) to 95mm(Wide Angle), 95mm, 92mm, 90mm, 87mm, 86mm, 85mm, and 80mm.
Prop65 WARNING: This product may expose you to chemicals which are known to the State of California to cause cancer. For more information go to www.P65Warnings.ca.gov.