Designed to improve depth of field for all Sightron 60MM and 56MM Models the Objective Stop Ring model 70015 also increases the mirage reading capability under certain lighting conditions. The Objective Stop Ring comes in a two piece model that will allow the user to stop down the 60MM or 56MM Objective to either 49MM or 43MM depending on conditions.

All Objective Stop Rings are designed to fit with or without a sunshade attached.