These Arri MB-20 R4 Reducing Rings are used between the (4 1/2")114mm Filter Ring and your lenses.
These Reducing Rings allows the user to step down to a smaller lens diameter by reducing the R5 (4 1/2")114mm diameter of the Filter Ring. Reducing Rings can reduce the current diameter to 110mm, 105mm, 104mm, 100mm, 98mm, and 96mm.
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.
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